| Extension | File Type | Files scanned | Contributor |
| C | Compact compressed data | 2 | |
| C | Compact compressed data (alt) | 2 | |
| C10 | Virtual MC-10/Alice tape image | 26 | |
| C2B | Casio ClassMate II Animation | 8 | |
| C2D | Carbide Create model | 16 | |
| C2D | Roxio CD Image format (v3) | 3 | |
| C2P | Casio ClassMate II Picture | 53 | |
| C3 | 3D model | 3 | |
| C32 | Syslinux COM32 module (generic) | 3 | |
| C32 | Syslinux COM32 module (v2) | 621 | Joerg Jenderek |
| C32 | Syslinux COM32 module (v4) | 247 | Joerg Jenderek |
| C32 | Syslinux module (v5 32-bit) | 378 | Joerg Jenderek |
| C32 | Syslinux module (v5 64-bit) | 133 | Joerg Jenderek |
| C3B | Cocos2d-x 3D object (binary) | 15 | |
| C3D | Chem3D Format | 21 | |
| C3D | Chem3D model | 13 | |
| C3D | Coordinate 3D format | 31 | |
| C3D | Dynamix 3D data container | 10 | |
| C3T | Cocos2d-x 3D object (text) | 6 | |
| C3XML | Chem3D XML format | 6 | |
| C4 | JEDMICS C4 (var 1) | 2 | |
| C4 | JEDMICS C4 (var 2) | 2 | |
| C4* | Clonk game data | 20 | |
| C4D | CINEMA 4D model (generic) | 21 | |
| C4D | Maxon Cinema 4D scene (BMC4D) | 2 | |
| C4D | Maxon Cinema 4D scene (FRAY) | 5 | |
| C4D | Maxon Cinema 4D scene (rel.6) | 16 | |
| C4D/MC4D | Maxon Cinema 4D scene (v4.x) | 45 | |
| C4D | Maxon Cinema 4D scene (v5.0) | 20 | |
| C4M/COM | 16bit COM executable Com4Mail | 8 | |
| C4M | Clonk Material definition | 6 | |
| C56/C72 | Deluxe Paint for IBM PC color font | 4 | |
| C64 | CCS64 Freeze saved state | 23 | |
| C64 | CCS64 snapshot (v1) | 8 | |
| C64 | PC64/DOS saved session image/dump | 4 | |
| C64 | lvl C64 emulator snapshot | 7 | |
| CA1 | Crack Art bitmap (low-res) | 7 | |
| CA1 | Crack Art bitmap (low-res, comp) | 11 | |
| CA1 | Tales Runner Animation (v1) | 3 | |
| CA2 | Crack Art bitmap (med-res) | 4 | |
| CA2 | Crack Art bitmap (med-res, comp) | 2 | |
| CA3 | Crack Art bitmap (hi-res) | 7 | |
| CA3 | Crack Art bitmap (hi-res, comp) | 2 | |
| CA3 | Tales Runner Animation (v3) | 2 | |
| CA5 | Calendar Creator 5 ClipArt Archive | 120 | |
| CAB | InstallShield Compressed Archive (generic) | 15 | |
| CAB | Microsoft Cabinet Archive | 17 | |
| CAB | Microsoft Windows CE installation Cabinet Archive | 40 | Joerg Jenderek |
| CABAL | Cabal info | 39 | |
| CABAL | Cabal info (with rem) | 21 | |
| CABAL | Cabal info (with ver) | 5 | |
| CACHE | WinUAE configuration Cache | 3 | |
| CAD | CADe_SIMU project | 4 | |
| CAD | CadStd drawing | 8 | |
| CAD | Diagsoft Space Shuttle Plot data | 2 | |
| CAD | Drafix Windows CAD drawing | 4 | |
| CAD | EXTRACAD drawing | 4 | |
| CAD | GenCAD layout | 11 | |
| CAD | IntroCAD drawing | 5 | |
| CAD | KiCad Drawing | 10 | |
| CAD | QuickCAD Drawing | 6 | |
| CAD | Rad Cad drawing | 5 | |
| CAF | Cal3D Animation File | 25 | |
| CAF | Cathy catalog | 659 | aNDreas Bolota |
| CAF | Core Audio Format | 11 | |
| CAF | PS Vita SCECAF crash report | 2 | |
| CAG | Capella gallery data file | 7 | Joachim Grabinski |
| CAG | Create Adventure Games project | 3 | |
| CAG | Microsoft Clip Art Gallery Catalog | 12 | |
| CAI | SeeYou flight data | 9 | |
| CAJ | CAJ database | 13 | |
| CAJ | Chinese Academic Journal | 37 | |
| CAKEWALKSTUDIOWARE | Cakewalk Studio Ware panel | 11 | |
| CAL/CALS | CALS raster bitmap | 6 | |
| CAL | Ease Calcform spreadsheet | 3 | |
| CAL | ExpressCalc spreadsheet (v4.0) | 2 | |
| CAL | Microsoft Project 4.0 for DOS Calendar | 3 | |
| CAL | PeachCalc spreadsheet | 11 | |
| CAL | PeachCalc spreadsheet (v2.x) | 14 | |
| CAL | QV Map Calibration data | 16 | |
| CAL | SuperCalc 2/3 spreadsheet (v1.00) | 5 | |
| CAL | SuperCalc 3 spreadsheet (v2.x) | 25 | |
| CAL | SuperCalc 4 spreadsheet | 9 | |
| CAL | SuperCalc worksheet (gen) | 25 | |
| CAL | Windows Calendar | 7 | |
| CALC | EasyCalc spreadsheet (v1.0) | 2 | |
| CALC | EasyCalc spreadsheet (v2.0) | 8 | |
| CALC | SFX Advanced Calculator spreadsheet | 4 | |
| CALIBZ | Chief Architect symbol Library (compressed ) | 6 | |
| CAM | Aegis ProMotion/Videoscape 3D Camera | 11 | |
| CAM | Casio QV digital CAMera bitmap | 2 | |
| CAM | Fallout Tactics Campaign | 2 | |
| CAM | Flight Commander 2 Campaign data | 24 | |
| CAM | MSN Messenger ML20 video | 5 | |
| CAM | Opticks Camera | 3 | |
| CAMM | Crystal Alien Map Maker project (INI) | 12 | |
| CAMM | Crystal Alien Map Maker project (JSON) | 31 | |
| CAMM | Espresso Mind Map | 4 | |
| CAMPROJ | Camtasia Studio Project | 14 | |
| CAMPROJ | Camtasia Studio Project (UTF-8) | 16 | |
| CAMREC | Camtasia Studio Screen Recording | 14 | |
| CAN | CAN embroidery format | 49 | |
| CAN | Cantor song (v1.x) | 4 | |
| CAP | Capella music notation (v2.0, binary) | 4 | |
| CAP | Capella music notation (v2.1, binary) | 25 | |
| CAP | Capella music notation (v2.2, binary) | 3 | |
| CAP | Capella music notation (v3, binary) | 238 | Joachim Grabinski |
| CAP | Generic network capture file (XCP style) | 4 | |
| CAP/PIC/TXM | IBM Storyboard screen Capture | 15 | |
| CAP | Java Card converted Applet | 7 | |
| CAP | Microsoft NetMon v1.x traffic capture | 5 | |
| CAP | Microsoft NetMon v2.x traffic capture | 8 | |
| CAP | Snoop capture file | 3 | |
| CAP | Ventura Publisher Caption | 12 | |
| CAPNP | Cap'n Proto schema | 10 | |
| CAPROJ | Construct 2 Project | 16 | |
| CAPX | Capella CapXML music notation (zipped) | 19 | |
| CAPX | Construct compressed game project | 8 | |
| CAQ | Aquarius Cassette tape image | 12 | |
| CAR | Atari Cartridge | 45 | |
| CAR | Atari cartridge memory image | 2 | |
| CAR | Biosym archive | 6 | |
| CAR | C64 Archiver archive | 8 | |
| CAR | CAR compressed archive | 4 | |
| CAR | CCS64 Cartridge | 2 | |
| CAR | Carnivores /2 /Ice Age animal and object graphics and behavior file | 27 | Dinoguy1000 |
| CAR | Carrara Environment | 15 | |
| CAR | Cellsprings CA Rule | 6 | |
| CAR | Compressia Archive | 3 | |
| CAR | Content Addressable Archive (v1) | 2 | |
| CAR | Content Addressable Archive (v2) | 2 | |
| CAR | NASCAR Racing 2 Car data | 59 | |
| CAR | NASCAR Racing 2002 Season Car data | 2 | |
| CAR | NASCAR Racing 3 Car data | 94 | |
| CAR | NeoBook Cartoon | 3 | |
| CAR | Royal Heroes game data archive | 2 | |
| CAR | VICE C128 cartridge | 2 | |
| CAR | VICE CBMII cartridge | 2 | |
| CAR | VICE PLUS4 cartridge | 2 | |
| CAR | VICE VIC20 cartridge | 2 | |
| CAS | Atari Cassette tape image | 3 | |
| CAS | EACA Colour Genie virtual tape image | 4 | |
| CAS | EnCase Case data | 3 | |
| CAS | Fluent case | 6 | |
| CAS | Frostbite Container of ASsets | 2 | |
| CAS | Javelin Case study | 18 | |
| CAS | M2000 tape image | 8 | |
| CAS | MSX Cassette tape image | 2679 | |
| CAS | Quest adventure (v1-4) | 9 | |
| CAS | Sord M5 tape image | 19 | |
| CAS | Videoton TV-Computer tape image | 341 | |
| CASETEMPLATE | EnCase Case Template | 15 | |
| CAST | asciicast (v2) | 9 | |
| CAT | Casio calculator Tape format | 66 | |
| CAT/DAT | Centurion: Defender of Rome game data | 13 | |
| CAT | Elcomsoft ADC Advanced Disc Catalog | 12 | Christian Wolkersdorfer |
| CAT | Frostbite Catalog | 2 | |
| CAT | HotHelp Catalog | 5 | |
| CAT | Maxon Cinema 4D Catalog (v5.0) | 2 | |
| CAT | Microsoft Security Catalog | 6 | Joerg Jenderek |
| CAT | Microsoft Security Catalog (DER encoded) | 866 | Joerg Jenderek |
| CAT | Starcat disks catalogue | 3 | |
| CAT | Upcat Catalog | 4 | |
| CAT | WinCat disk Catalog | 2 | |
| CATALOG | Amiga Catalog translation format | 18 | |
| CATDRAWING | CATIA Drawing (generic) | 74 | |
| CATDRAWING | CATIA Drawing (v5 r16) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r17) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r18) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r19) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r20) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r21) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r22) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r23) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r24) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r25) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r26) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r27) | 75 | |
| CATDRAWING | CATIA Drawing (v5 r28) | 75 | |
| CATMATERIAL | CATIA Material (v5) | 4 | |
| CATPART | CATIA Part Description (generic) | 30 | |
| CATPART | CATIA Part Description (v5 r16) | 32 | |
| CATPART | CATIA Part Description (v5 r17) | 32 | |
| CATPART | CATIA Part Description (v5 r18) | 32 | |
| CATPART | CATIA Part Description (v5 r19) | 32 | |
| CATPART | CATIA Part Description (v5 r20) | 32 | |
| CATPART | CATIA Part Description (v5 r21) | 32 | |
| CATPART | CATIA Part Description (v5 r22) | 32 | |
| CATPART | CATIA Part Description (v5 r23) | 32 | |
| CATPART | CATIA Part Description (v5 r24) | 32 | |
| CATPART | CATIA Part Description (v5 r25) | 32 | |
| CATPART | CATIA Part Description (v5 r26) | 32 | |
| CATPART | CATIA Part Description (v5 r27) | 32 | |
| CATPART | CATIA Part Description (v5 r28) | 32 | |
| CATPRODUCT | CATIA Assembly (v5 r16) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r17) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r18) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r19) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r20) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r21) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r22) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r23) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r24) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r25) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r26) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r27) | 47 | |
| CATPRODUCT | CATIA Assembly (v5 r28) | 47 | |
| CATPRODUCT | CATIA V5 Assembly (generic) | 47 | |
| CATROBAT | Pocket Code/Catroid Catrobat Project | 209 | |
| CAZ | CAZIP compressed file | 9 | |
| CAZ | CAZIPXP compressed archive | 3 | |
| CBA | Chuck Biscuits/Black Artist module | 11 | |
| CBC | Clam Antivirus ByteCode signatures | 21 | |
| CBCX | Comic Book Creator document | 5 | |
| CBCX | Comic Book Creator document (Unicode) | 7 | |
| CBD | MapBrowser - MapWriter vector map data (BE) | 3 | |
| CBD | MapBrowser / MapWriter vector map data (LE) | 11 | |
| CBDS | Comic Book DS | 4 | |
| CBEA | Casio BE-300 installation package | 14 | |
| CBF | CoffeeCup Button Factory button | 14 | |
| CBF | Conic Benchmark Format model | 14 | |
| CBF | Conic Benchmark Format model (with rem) | 6 | |
| CBF | Infinity Engine archive (v1.0) | 118 | Sam. |
| CBF | RKS Software Clandar Builder saved calendar | 7 | |
| CBH | ChessBase Light database Header | 2 | |
| CBH | ChessBase database Header | 2 | |
| CBI | CBI document | 2 | |
| CBIN | CACTVS (binary format) | 2 | |
| CBM | 64 Colors BitMap | 2 | |
| CBM/GFX/GG | Doodle bitmap | 5 | |
| CBM/GFX/JJ | Doodle bitmap (compressed) | 18 | |
| CBMPRJ | CBM prg Studio Project | 6 | |
| CBOARD | Final Cut Pro X Color Board preset | 6 | |
| CBP | Code::Blocks Project | 27 | |
| CBPROJ | Borland C++ Builder project | 23 | |
| CBPROJ | Borland C++ Builder project (UTF-8) | 144 | |
| CBR | The Print Shop Deluxe Certificate Borders | 2 | |
| CBS | Codebreaker save | 11 | |
| CBS | RKS Software Clandar Builder Style Sheet | 9 | |
| CBT/CBD | WordPerfect Writing Tools data | 13 | Joerg Jenderek |
| CBV | ChessBase Archive file | 11 | |
| CBXML | CodeBox snippet library | 8 | |
| CC3 | Calendar Creator Plus project (v4.0) | 16 | |
| CC3D | CompuCell3D project | 5 | |
| CC5 | Calendar Creator 5 project | 102 | |
| CCA/CCC/CCF | CorelCENTRAL Card (generic) | 27 | |
| CCA | Multimedia Fusion - Click'n'Create file | 30 | |
| CCB | CocosBuilder info | 10 | |
| CCBI | CocosBuilder exported info | 7 | |
| CCC | Color Correction Collection | 2 | |
| CCC | TeslaCrypt/Cryptowall encrypted | 9 | |
| CCD | ClickCharts Diagram | 17 | |
| CCD | CloneCD CDImage (description) | 16 | THE LoW |
| CCD | CorelCAD Drawing | 36 | |
| CCD | Harry Potter: Quidditch World Cup game data archive | 2 | |
| CCE | Calendar Creator Plus project (v2.0) | 85 | |
| CCF | Component Configuration File (generic) | 7 | |
| CCF | Copper Colourz! File | 4 | |
| CCF | Eldritch Config data | 2 | |
| CCF | Wii Virtual Console CCF archive | 3 | |
| CCG | Carrier Command saved Game (DOS) | 4 | |
| CCH | CorelChart chart | 850 | |
| CCH | CorelChart chart (v5) | 1206 | |
| CCI | Compressed Champions' Interlace bitmap | 2 | |
| CCM | Creative Commons Module music | 9 | |
| CCP | AutoCAD Color Palette | 11 | |
| CCPROJ | Visual Studio Cloud service project | 15 | |
| CCR | Codecrypt ASCII-armored format | 2 | |
| CCR | Codecrypt encrypted data | 8 | |
| CCRF | Saba Centra Recording Studio recording | 4 | Chris Clemson |
| CCS | CableNut Custom Settings | 7 | |
| CCT | Calamus Codepage Table | 10 | |
| CCT | CorelCAD Drawing Template | 14 | Joerg Jenderek |
| CCT | Corncob 3D Theater-of-operation data | 4 | |
| CCT | Label Designer Plus Deluxe Template | 14 | |
| CCT | Macromedia Director Shockwave Cast | 16 | |
| CCVF | CompuColor Virtual Floppy disk image | 8 | |
| CCW | Calendar Creator Plus Workspace (v2.0) | 5 | |
| CCW | MSX Home Office document/data | 29 | |
| CCX | Corel Clipart | 1166 | |
| CD | Class Diagram (UTF-8) | 7 | |
| CD | Class Diagram (Unicode) | 4 | |
| CD5 | Chasys Draw IES drawing | 42 | |
| CDA | CD Audio track shortcut | 15 | |
| CDB | CodeSuite DataBase - BitMatch | 33 | |
| CDB | CodeSuite DataBase - CodeMatch | 8 | |
| CDB | Mactive AdBase data | 2 | |
| CDB | Pocket Access database | 14 | |
| CDB | Sangduck database | 2 | |
| CDB | Search'n'Destroy Configuration Data Base | 2 | |
| CDC | Chaos Compacted Disk image | 3 | |
| CDC/DQT | Telvox CODEC archive (v3.1x) | 11 | |
| CDC/DQT | Telvox CODEC archive (v3.2x) | 5 | |
| CDCOM | Circuit Diagram Component (compiled) | 5 | |
| CDD | Cadifra Diagram | 4 | |
| CDD | Claris Draw document | 18 | |
| CDD | ConceptDraw document | 6 | |
| CDDS | Midtown Madness 3 data | 5 | |
| CDDX | Circuit Diagram Document | 2 | |
| CDE | MicroHof Code encoded message | 4 | |
| CDF | Affymetrix Chip Definition File (Text) | 7 | |
| CDF | Channel Definition Format | 12 | |
| CDF | Common Data Format (v2.5) | 6 | Joerg Jenderek |
| CDF | Common Data Format (v2.6) | 15 | Joerg Jenderek |
| CDF | Common Data Format (v3) | 18 | Joerg Jenderek |
| CDF | Computable Document Format | 23 | |
| CDF/NC | NetCDF Network Common Data Form (generic) | 20 | |
| CDF/NC | NetCDF Network Common Data Form (v3) | 51 | Joerg Jenderek |
| CDF-MS | ClickOnce Compiled Manifest | 1132 | |
| CDK | Calamus Document | 16 | |
| CDL | CD Label Pro project | 2 | |
| CDL | Color Decision List | 2 | |
| CDL | NetCDF (network Common Data Form) | 14 | |
| CDM | NTI CD Maker image file | 4 | |
| CDM | PowerDesigner Conceptual Model | 13 | |
| CDO | Crescendo music score | 5 | |
| CDP | Chess Assistant DB (v3.0) - Chess Data Pro (v1.1) | 4 | |
| CDP | Trainz Content Dispatcher Pack | 36 | |
| CDPZ | ConceptDraw Project document (Zipped) | 30 | |
| CDR/LEC | Casio Graph100 ROMDISK image | 9 | |
| CDR | CorelDRAW drawing (generic) | 19 | |
| CDR | CorelDRAW drawing (v1.0) | 24 | |
| CDR | CorelDRAW drawing (v2.0) | 27 | |
| CDR | CorelDRAW drawing (zipped v14-v16) | 4 | Joerg Jenderek |
| CDR | CorelDRAW drawing (zipped v17-v21) | 6 | Joerg Jenderek |
| CDR | CorelDRAW drawing (zipped) | 18 | |
| CDR | CorelDRAW for OS/2 drawing (v2.5) | 4 | |
| CDR | CorelDraw Document | 67 | |
| CDR/CDT | CorelDraw Document (v12.5) | 7 | Joerg Jenderek |
| CDR/CDT | CorelDraw Document (v8b) | 20 | Joerg Jenderek |
| CDR | Elite Plus Commander file / saved game | 5 | |
| CDR | Elite game save (PC) | 34 | |
| CDR | Team F1 Circuit data | 18 | |
| CDRT | CorelDRAW drawing template (zipped v14-v16) | 3 | Joerg Jenderek |
| CDRT/CDT | CorelDRAW drawing template (zipped v17-v21) | 3 | Joerg Jenderek |
| CDRZIP | DICOM Images zipped archive | 6 | |
| CDS | Borland Client Dataset data | 20 | |
| CDSF | Amiga Component Data Stream Format video | 4 | |
| CDV | CD Viewer data | 7 | |
| CDV | Javelin Country Driver | 10 | |
| CDW | CeledyDraw drawing | 54 | |
| CDW | KOMPAS Drawing | 12 | |
| CDW | KOMPAS Drawing (Unicode) | 49 | |
| CDX | CDX Internet Archive index | 4 | |
| CDX | ChemDraw model | 17 | |
| CDX | Compound index MS Visual FoxPro 7 | 194 | Nicola Marangon |
| CDX/CJW/CPX | CorelDraw compressed format (generic) | 3 | |
| CDX | Sybase iAnywhere index files | 207 | Knuth Konrad |
| CDXL/XL | Amiga CDXL video (HAM, Mono, Bit planar) | 9 | |
| CDXL | Amiga CDXL video (RGB, Mono, Bit planar) | 14 | |
| CDXML | ChemDraw XML | 11 | |
| CDXML | PowerShell Cmdlet Definition XML | 10 | |
| CDXML | PowerShell Cmdlet Definition XML (UTF-8) | 18 | |
| CDZ | pSX compressed CD image | 10 | |
| CE1 | ComputerEyes Raw Data Format bitmap (low-res) | 7 | |
| CE2 | ComputerEyes Raw Data Format bitmap (med-res) | 7 | |
| CE3 | ComputerEyes Raw Data Format bitmap (hi-res) | 2 | |
| CEB | Apabi eBook | 10 | |
| CED | EEGLAB Channel Data | 7 | |
| CEDF | Ultra TC Editors Data File | 10 | |
| CEDF | Ultra TC Editors Data File (UTF-8) | 4 | |
| CEF | Cereal Encrypted File | 2 | |
| CEG | Continuous Edge Graphic bitmap | 7 | |
| CEG | The Punisher game data archive | 2 | |
| CEL | Affymetrix Probe Results (Bin) | 4 | |
| CEL | Affymetrix Probe Results (Text) | 18 | |
| CEL | Audition Loop | 997 | |
| CEL | Bentley MicroStation CAD Cell library | 2 | Joerg Jenderek |
| CEL | Celestia script | 9 | |
| CEL | Chasm CEL bitmap | 2 | |
| CEL | Cyber Paint Cell animation | 30 | |
| CEL | KiSS CEL bitmap | 2666 | |
| CELL | CASTEP Cell structure info | 33 | |
| CER | Internet Security Certificate | 11 | |
| CER/MSI | MSI/Accelrys Cerius II | 4 | |
| CF1 | Common Loudspeaker Format binary (v1, Type 1) | 154 | |
| CF2 | Common Loudspeaker Format binary (v1, Type 2) | 120 | |
| CF2 | Common Loudspeaker Format binary (v2, Type 2) | 14 | |
| CFC | ColdFusion Component | 16 | |
| CFC | ColdFusion Component (with rem) | 8 | |
| CFDG | Context Free design grammar | 46 | |
| CFF | BoomTracker 4.0 module | 4 | |
| CFF | Compact Font Format | 8 | |
| CFF | SpellForce 2 game data archive | 4 | |
| CFG | 8086 Tiny Plus Configuration | 4 | |
| CFG | AGS game configuration | 10 | |
| CFG | Ableton project configuration | 10 | |
| CFG | Above DISC Configuration | 2 | |
| CFG | After Dark for DOS Configuration | 2 | |
| CFG | After Dark for DOS TSR Configuration | 2 | |
| CFG | Agat Emulator Configuration | 45 | |
| CFG | Atari800 emulator Configuration | 4 | |
| CFG | Atomulator Configuration | 3 | |
| CFG | AutoCAD Configuration | 6 | |
| CFG | AutoSketch Configuration (v1.x) | 3 | |
| CFG | Back-It device definition (v4) | 4 | |
| CFG | BeebEm preferences | 2 | |
| CFG | CHITUBOX profile Configuration | 8 | |
| CFG | CPBackup Configuration (v9.x) | 4 | |
| CFG | Cura variant configuration | 267 | |
| CFG | DESQview/X colors Configuration | 5 | |
| CFG | DRIFT2000 Configuration | 4 | |
| CFG | DWED Configuration | 3 | |
| CFG | Doom Configuration | 6 | |
| CFG | Dos Navigator 2 settings | 2 | |
| CFG | EF 2000 Configuration | 3 | |
| CFG | EISA add-on card Configuration | 25 | |
| CFG | EISA add-on card Configuration (with CR) | 12 | |
| CFG | EISA add-on card Configuration (with rem) | 34 | |
| CFG | EM400 Configuration | 13 | |
| CFG | EZ-DOS-IT configuration | 6 | |
| CFG | Empire Deluxe Configuration (DOS) | 3 | |
| CFG | Empire Deluxe Configuration (Win) | 2 | |
| CFG | Empire II: The Art of War Configuration | 2 | |
| CFG | Expert Astronomer I Configuration | 2 | |
| CFG | EzCad Configuration | 6 | |
| CFG | File Wizard Configuration | 3 | |
| CFG | Foltyn Commander Configuration | 4 | |
| CFG | G-Police Configuration | 3 | |
| CFG | Grand Theft Auto 2 keyboard Configuration | 6 | |
| CFG | HMI Sound Operating System Configuration | 7 | |
| CFG | Hatari Configuration | 8 | |
| CFG | HiJaak video card configuration | 31 | |
| CFG | HxC Floppy Emulator configuration (generic) | 9 | |
| CFG | HxC Floppy Emulator configuration (v1.0) | 8 | |
| CFG | HxC Floppy Emulator configuration (v2.0) | 2 | |
| CFG | Impulse Tracker font | 16 | |
| CFG | Inertia Player Configuration (v1.x) | 2 | |
| CFG | Javelin Configuration | 2 | |
| CFG | Jeepers Configuration | 2 | |
| CFG | KGen Configuration | 3 | |
| CFG | KGen98 Configuration | 2 | |
| CFG | Kasparov's Gambit Configuration | 8 | |
| CFG | Klipper printer Configuration | 13 | |
| CFG | Klipper printer Configuration (with rem) | 141 | |
| CFG | LightWave 3D Configuration | 4 | |
| CFG | Linksys NVRAM configuration dump | 2 | |
| CFG/SEED/TXT | Linux Preseed Configuration | 5 | |
| CFG | LogicLab Explorer Configuration (v2.x) | 4 | |
| CFG | MAME Configuration | 4 | |
| CFG | MAME Configuration (UTF-8) | 5 | |
| CFG | MS Flight Simulator aircraft configuration file | 18 | |
| CFG | MagicEngine Configuration | 2 | |
| CFG | Makkoya Configuration | 2 | |
| CFG | Minimig Configuration | 3 | |
| CFG | Mixxx keyboard configuration | 13 | |
| CFG | MonsterBook Configuration | 2 | |
| CFG | MuLib Configuration | 2 | |
| CFG | Number Munchers Configuration | 2 | |
| CFG | OCPlay Configuration | 2 | |
| CFG | ODI link driver configuration | 25 | |
| CFG | OPTune Configuration | 2 | |
| CFG | PDC Prolog Configuration | 8 | |
| CFG | PDC Prolog configuration (generic) | 3 | |
| CFG | PLBM Games Configuration | 3 | |
| CFG | Piano Booster Configuration | 4 | |
| CFG | Pksmart Configuration | 2 | |
| CFG | Polycom SoundPoint IP configuration | 15 | |
| CFG | Prism3D config | 10 | |
| CFG | Protext Configuration | 2 | |
| CFG | RAR Configuration | 2 | |
| CFG | Rama SpellCheck Professional Configuration (v2.x) | 2 | |
| CFG | S2 Engine class definition | 35 | |
| CFG | Sango Fighter Configuration | 2 | |
| CFG | ShowMiiWads configuration | 4 | |
| CFG | Spirit of Excalibur settings | 4 | |
| CFG | Stare-EO Workshop configuration | 2 | |
| CFG | Super Angelo Configuration | 2 | |
| CFG | TMT Pascal project Configuration (generic) | 88 | |
| CFG | TapEx Configuration | 5 | |
| CFG | The Perfect General Configuration | 2 | |
| CFG | Tomato ARM config format | 2 | |
| CFG | UCDOS Configuration | 2 | |
| CFG | VGA-Copy Configuration | 3 | |
| CFG | Vortex ATonce Configuration | 7 | |
| CFG | West Adventure Configuration | 2 | |
| CFG | WildMidi Configuration | 2 | |
| CFG | Wordsearch Mania! Configuration | 2 | |
| CFG | Z.A.R. Navigator Configuration | 2 | |
| CFG | Zyclunt Configuration | 2 | |
| CFG | ep32 Configuration | 9 | |
| CFG | idMAS Configuration | 2 | |
| CFG | mTCP Configuration | 4 | |
| CFL | Compressed File Library 2 compressed data | 3 | |
| CFL | Compressed File Library 3 compressed data | 4 | |
| CFM | ColdFusion Template | 11 | |
| CFM | Color Font Maker pattern (v1) | 7 | |
| CFM | The Need for Speed car exterior | 39 | |
| CFML | ColdFusion Markup Language | 3 | |
| CFN | Calamus Font Data | 25 | |
| CFN | The Bat! accounts Configuration | 6 | |
| CFOSSPEED | cFosSpeed registration key | 8 | |
| CFP | CoverFactory Project | 8 | |
| CFP | cdrtfe Project | 18 | Joerg Jenderek |
| CFT | CFast Animation | 13 | |
| CFT | CFast Animation (secured) | 8 | |
| CFT | Calamus Farb (Colour) Table | 16 | |
| CFT | ChiWriter low resolution screen font. | 17 | |
| CFX | Casio Algebra FX Add-in (compressed) | 11 | |
| CGC | Colour Genie high level tape image | 4 | |
| CGD | Cricket Graph Data | 9 | |
| CGF | CAL compressed data | 38 | |
| CGF | EGrid32 Compilable Grid Format (ready to be compiled) | 2 | Elias Montoya |
| CGF | EGrid32 Compilable Grid Format (ready to be modified) | 2 | Elias Montoya |
| CGG | Cricket Graph Graph | 13 | |
| CGL | Cabri 3D Language | 7 | |
| CGL | Creative Graphics Library driver (rev. 2) | 19 | |
| CGM | Computer Graphics Metafile (Clear Text) | 32 | |
| CGM | Computer Graphics Metafile (binary) | 401 | |
| CGNS | CFD General Notation System data | 18 | |
| CGP | DVDFab Change Graphic Picture | 4 | |
| CGP | NetCaptor's CaptorGroup | 5 | |
| CGP | Xilinx Core Generator System Project | 8 | |
| CGP | Xilinx Core Generator System Project (with rem) | 13 | |
| CGR | Quest3D data | 14 | |
| CGT | Cricket Graph Template | 2 | |
| CGT | GOLD Parser Tables | 7 | |
| CGX | CGFX Commodore Grafix format | 6 | |
| CGX | CommonGraph format | 25 | |
| CGX | CommonGraph format (UTF-8) | 3 | |
| CH | Ch file format | 2 | |
| CH | Ch file format (encrypted) | 4 | |
| CH$ | ZX Spectrum CHR$ bitmap | 9 | |
| CH3 | Harvard Graphics Chart (v3.x) | 233 | |
| CHAIN | Chain format | 9 | |
| CHART | MacStitch/WinStitch design | 50 | |
| CHD | MAME Compressed Hard Disk image | 2 | |
| CHECKPOINTS | Multibit Blockchain Checkpoints data | 3 | |
| CHESSTITANSSAVE-MS | Microsoft Chess Titans Saved game | 5 | |
| CHI | ChiWriter document (v3.x or older) | 4 | |
| CHI | ChiWriter document (v4.x) | 8 | |
| CHI | Chip Tracker module | 2 | |
| CHI | Windows HELP Index | 213 | |
| CHITUBOX | CHITUBOX sliced model | 7 | |
| CHK | ORIGIN System Checksum (v3.0) | 5 | |
| CHK | PolySpace check results | 7923 | aNDreas Bolota |
| CHK | SCCS checksum | 23 | |
| CHL | Black and White 2 game data script | 6 | |
| CHL | Chile compressed file | 2 | |
| CHM | BioCAD CHM format (Query) | 3 | |
| CHM | BioCAD CHM format (generic) | 6 | |
| CHM | DESIGN 3D path | 3 | |
| CHM | Windows HELP File | 226 | Davide "Airex" Airaghi |
| CHN | ApBasic Chain file/module | 3 | |
| CHN | Turbo Pascal 2.0 Chain module | 6 | |
| CHN | Turbo Pascal 3.0 Chain module | 12 | |
| CHO | Playmation Chor data | 25 | |
| CHORDS | SuperJAM! Chords | 43 | |
| CHP | CHP! - CH compressor for Picture! compressed bitmap | 2 | |
| CHP | NBI Legacy document (v2.x) | 18 | |
| CHP | NBI Legend document (v1.x) | 30 | |
| CHP/OL | PFS:Write document/outline (v2.x) | 17 | |
| CHP | VP-Expert Help System | 3 | |
| CHP | Ventura Publisher Chapter | 46 | |
| CHP | Ventura Publisher Chapter | 52 | |
| CHPROJ | Adobe Character Animator Project | 4 | |
| CHR | Apricot Character set | 7 | |
| CHR | BGI (Borland Graphics Interface) font | 18 | |
| CHR | Byline Charset definition | 3 | |
| CHR | Digital Reality Software font | 26 | |
| CHR | Graphic Master charset | 8 | |
| CHR | Infinity Engine exported player Character (generic) | 6 | |
| CHR | Infinity Engine exported player Character (v1.2) | 2 | |
| CHR | Infinity Engine exported player Character (v2.0) | 2 | |
| CHR | Infinity Engine exported player Character (v2.2) | 2 | |
| CHR | Infinity Engine exported player Character (v9.0) | 2 | |
| CHR | PaintShow Font | 12 | |
| CHR | SRI PeakSimple chromatogram | 9 | |
| CHR0 | Wii Model Animation | 2 | |
| CHS | CHAOSultdGEM parameters | 78 | |
| CHT | Corporate Ladder Chart | 5 | |
| CHT | Harvard Graphics Chart (v2.x) | 125 | |
| CHT | Harvard Graphics Chart (vA.01) | 3 | |
| CHT | NES emulator Cheats (var1) | 140 | |
| CHT | NES emulator Cheats (var2) | 22 | |
| CHT | RetroArch Cheats | 3081 | |
| CHT | RetroArch Cheats (with rem) | 16 | |
| CHT/SCT | SPSS template | 6 | |
| CHT | WinWorks Chart | 4 | |
| CHU | Infinity Engine user interface description (V1) | 2 | |
| CHX | CHX font format | 2 | |
| CHZ | ChArc compressed archive | 5 | |
| CI | CyberTracker Instrument | 69 | |
| CI1 | Common Instrument File Format Type 1 (binary dist. format) | 15 | |
| CI2 | Common Instrument File Format Type 2 (binary dist. format) | 17 | |
| CI6 | Norton pcAnywhere Callers list | 2 | |
| CIA | Nintendo 3DS CTR Importable Archive | 12 | |
| CIB | Card Image Backup format | 4 | |
| CIC | CICALC spreadsheet (v2.x) | 6 | |
| CIF | BoomTracker 4.0 instrument | 82 | |
| CIF | CleWin CIF layout | 10 | |
| CIF | Costa Icon File | 120 | |
| CIF | Crystallographic Information File | 4 | |
| CIF | Easy CD Creator disk image | 4 | |
| CIFF | IFF Chunky bitmap | 6 | |
| CIL | Clip Gallery Download Package | 3 | |
| CIN | Calculux Indoor project | 2 | |
| CIN | Cinemaware music | 12 | |
| CIN | Delphine CIN video | 2 | |
| CIN | Id Software Quake II Cinematic video | 6 | |
| CIN | Interact Cassette image | 29 | |
| CIN | Kodak Cineon bitmap | 26 | |
| CINE | Phantom Cine video | 9 | |
| CINEMA4D | Cinema 4D project | 7 | |
| CIP | Cisco IP Phone Image bitmap | 3 | |
| CIR | Micro-Cap 5 Circuit | 101 | |
| CIRC | Logisim Circuit | 46 | |
| CIRCUIT | KTechlab circuit design | 7 | |
| CISO/CSO/WBI | CISO Compressed ISO CD image | 7 | |
| CIT | Fortune Cite data | 4 | |
| CIT | Intergraph Raster bitmap (CCITT Group 4, 1-bit) | 3 | Joerg Jenderek |
| CIV5MAP | Civilization 5 Map | 42 | |
| CIV5PROJ | Civilization 5 Project | 14 | |
| CIV5SAVE | Civilization V saved game | 16 | |
| CIV5SLN | Visual Studio Civilization 5 Solution | 15 | |
| CJM | TheC64 Config/Joystick/Mode settings (J) | 11 | |
| CJM | TheC64 Config/Joystick/Mode settings (V) | 5 | |
| CJM | TheC64 Config/Joystick/Mode settings (X) | 7 | |
| CJR | Panasonic JR Cassette image | 66 | |
| CK1024 | CyberKnife Treatment Image (1024x1024) | 2049 | Ian Cowley |
| CK512 | CyberKnife Treatment Image (512x512) | 2049 | Ian Cowley |
| CK6 | Commander Keen 6 config | 2 | |
| CKB | Cricket Audio Bank | 10 | |
| CKBX | Cricket Audio XML Bank Description | 8 | |
| CKD | Cadkey Design file | 6 | |
| CKD | CheckIt Pro Data | 2 | |
| CKD | KeyCreator Design file | 7 | |
| CKD | UbiArt Framework Cooked Asset | 78 | |
| CKF | Casio Keyboard File | 23 | |
| CKIT | Compression KIT compressed C64 disk | 2 | |
| CKT | CircuitMaker schematic | 92 | Renan |
| CKT | Combinatorial Circuit Worksheet project(v1.0) | 3 | |
| CKT | LogicLab Explorer Circuit Description | 16 | |
| CL1 | Cedar Lake Software game data | 10 | |
| CL2/CL3/CL4 | Easy CD Creator Layout | 18 | |
| CL2 | Hy-Tek Meet Results | 11 | |
| CL2ARC | Comic Life 2 Archive | 8 | |
| CL3 | Topcon CL3 point cloud data | 2 | |
| CL5 | Easy CD Creator 5 Layout | 14 | |
| CLA | CLASS336 Markup Language | 6 | |
| CLASS | Java bytecode | 3298 | Joerg Jenderek |
| CLB | COM+ catalog file | 7 | |
| CLB | CONTEC Logger Binary data | 4 | |
| CLB | CardSoft PCMCIA Card Library | 32 | |
| CLBX | MP3 Automagic CD Cover Creator label | 6 | |
| CLC | Corel Catalog | 29 | |
| CLC | Handy Calc data (v1.0) | 5 | |
| CLD | World Construction Set Cloud map | 2 | |
| CLF | ListPro data | 14 | |
| CLF | Source Insight Custom Language File | 10 | |
| CLG | Collage Maker document | 4 | |
| CLIP | Clip Studio Paint illustration | 8 | |
| CLIP | DCTV Paint Clip | 2 | |
| CLIPS | Programmer's Notepad text Clips | 18 | |
| CLIPS | Programmer's Notepad text Clips (UTF-8) | 4 | |
| CLK | ClickFORMS data | 8 | |
| CLK | Cloak encrypted data | 9 | |
| CLK | Corel R.A.V.E. Animation | 9 | |
| CLK | WatchGuard Cloaked data | 13 | |
| CLKX | Crick Software Clicker File | 18 | Andrew Burt |
| CLMOV | Clan Lord movie - Visiostone | 8 | |
| CLN | OpenToonz cleanup settings | 3 | |
| CLO/CLOE | Cloe picture bitmap (big endian) | 2 | |
| CLO/CLOE | Cloe picture bitmap (little endian) | 2 | |
| CLO | SPSS Chart Look | 8 | |
| CLP | DeskMate clipart | 28 | |
| CLP | Quattro Pro Clip art | 54 | |
| CLP | Windows Clipboard (BK) | 2 | |
| CLP | Windows Clipboard (NT) | 2 | |
| CLP | Windows Clipboard (Win3.1) | 2 | |
| CLPI | Blu-ray Clip AV stream | 4 | |
| CLR | 3ds UI colors | 17 | |
| CLR | Macromedia Flash Color Table File | 8 | .Cryorb |
| CLR | PhotoStyler Colors definition (v1.00) | 65 | |
| CLR0 | Wii Color Swapping Animation | 2 | |
| CLS | Visual Basic class definition | 42 | |
| CLT | Abomination: The Nemesis Project game data archive | 2 | |
| CLT | KretSim Layout | 11 | |
| CLW | MFC ClassWizard info | 7 | |
| CLX | Sentry Spelling-Checker Engine Lexicon | 25 | |
| CLY | ACT! Contact Layout (v3.0) | 6 | |
| CLY | The Print Shop Deluxe Card Layout | 2 | |
| CLZ | ChiefLZA compressed archive | 2 | |
| CM | Brief Compiled Macro (generic) | 6 | |
| CM | Brief Compiled Macro (v1.x) | 20 | |
| CM | Brief Compiled Macro (v3.x) | 41 | |
| CM | CustomMade module | 8 | |
| CM | The Chessmaster 2000 saved game | 109 | |
| CMA | OCaml bytecode (library) | 17 | |
| CMAP | Adobe CMaps | 10 | |
| CMAP/PAL/IFF | IFF Color Map | 26 | |
| CMATE | ControllerMate programming | 15 | |
| CMB | Reason Combinator Instrument Patch | 35 | |
| CMBL | Vernier Logger Pro data | 83 | |
| CMC | Comic Collector Collection data | 4 | |
| CMD | 1dir+ Additionals Commands definition | 3 | |
| CMD | PCOS executable | 16 | |
| CMD5/CMDF/CMMF | CrystalMaker Data format (generic) | 1860 | |
| CMD5 | CrystalMaker Data format (v5-6) | 1802 | |
| CMDF | CrystalMaker Data format (v2-4) | 22 | |
| CMF | Cal3D Mesh File | 306 | |
| CMF | Creative Music Format | 13 | |
| CMF | Sangduck Map | 2 | |
| CMG | Chessmaster saved game (10th ed.) | 2 | |
| CMG | Chessmaster saved game (generic) | 2 | |
| CMG | Cramfs ROM filesystem package (big endian) | 4 | |
| CMG | Cramfs ROM filesystem package (little endian) | 2 | |
| CMI | OCaml bytecode (compiled interface) | 2 | |
| CML | Chemical Markup Language | 34 | |
| CML | Chemical Markup Language XML document | 392 | |
| CML | ChordML music document | 3 | |
| CML | UniComal COMAL 80 Library | 8 | |
| CMML | Continuous Media Markup Language | 12 | |
| CMO | OCaml bytecode (object) | 2 | |
| CMOD | Celestia 3D model (ASCII) | 2 | |
| CMOD | Celestia 3D model (binary) | 3 | |
| CMP | AUKTOOLS 2000 compressed archive | 3 | David J Walker |
| CMP | Colorado Memory System Compressed Package | 10 | |
| CMP | DCS Campaign script | 11 | |
| CMP | HotDocs Component | 44 | |
| CMP | KiCad footprint information | 12 | |
| CMP | LEADTools CMP Image Compressed bitmap (1bit) | 2 | |
| CMP | LEADTools CMP Image Compressed bitmap (color) | 2 | |
| CMP | Moonbase Commander game data archive | 2 | |
| CMP | NEW-DOS COMPRESS compressed data | 6 | |
| CMP | Nintendo Zlib Compressed data | 7 | |
| CMP | Photofinish Calibration Map (v1.00) | 30 | |
| CMP | THEOS compressed archive | 11 | |
| CMP/LIB/$$$/PAK/TSC/DO$ | TSComp compressed data (multi) | 33 | Joerg Jenderek |
| CMPROJ | Channel Master Project | 36 | |
| CMR | SeeYou Raster Map | 7 | |
| CMS | Celestia Sphere displacement Mesh | 7 | |
| CMS | Celestia Sphere displacement Mesh (with rem) | 7 | |
| CMS | Creative Music System music | 132 | |
| CMS | Eldritch 3D meshes | 2 | |
| CMU | CMU Window Manager bitmap | 19 | |
| CMU | CMU format - Andrew Toolkit | 3 | |
| CMV | CMV compressed data | 3 | |
| CMV | Corel Move animation | 6 | |
| CMX | Corel Metafile Exchange Image (Legacy) | 4117 | Alex Paven |
| CMX | Corel Metafile Exchange Image (v16) | 5 | Joerg Jenderek |
| CMX | Corel Metafile Exchange Image (v5) | 2 | Joerg Jenderek |
| CMX | Corel Metafile Exchange Image (v6) | 32 | Joerg Jenderek |
| CMX | OCaml bytecode (native object) | 2 | |
| CMXA | OCaml bytecode (native library) | 2 | |
| CMZ | CMZ Compressed archive | 31 | |
| CN | Copy Numbers format | 15 | |
| CN3 | Nord Electro 2 Program Bank | 8 | |
| CNC3REPLAY | Command and Conquer 3 replay | 4 | |
| CND | Harvard Total Project Manager Calendar (v1) | 4 | |
| CND | Harvard Total Project Manager Calendar (v2) | 6 | |
| CND | cnd/Dos Condensed embroidery format | 20 | |
| CNDF | Compressed Channel Data File | 4 | |
| CNF | CA-Simply Money Configuration | 2 | |
| CNF | Invision Configuration | 2 | |
| CNF | JOC-Configuration data | 3 | |
| CNF | JOC-Configuration data (new) | 2 | |
| CNF | Lotus 123 configuration (V1) | 3 | Joerg Jenderek |
| CNF | Lotus 123 configuration (V2.2) | 2 | Joerg Jenderek |
| CNF | Lotus 123 configuration (V2.3) | 2 | Joerg Jenderek |
| CNF | Lotus 123 configuration (V2.4J) | 1 | Joerg Jenderek |
| CNF | Lotus 123 configuration (V3) | 2 | Joerg Jenderek |
| CNF | Lotus 123 configuration (V4) | 1 | Joerg Jenderek |
| CNF | Lotus 123/Symphony worksheet/format/configuration (V1-V2) | 13 | Joerg Jenderek |
| CNF | Lotus Symphony configuration | 2 | Joerg Jenderek |
| CNF | PlayStation 2 system configuration | 3 | |
| CNF | Varsity Scripsit Configuration | 2 | |
| CNM/CI2 | CNM video (generic) | 32 | |
| CNT | DESIGN 3D outline | 11 | |
| CNT | Help File Contents | 5 | |
| CNT/DTA | Hidden and Dangerous game data archive | 4 | |
| CNT | Painter 3D Contour | 2 | |
| CNV | DB2 Conversion File | 52 | Roberto 'rbnet' Bolli |
| CO | Cult3D object | 9 | |
| COASTS | AmiAtlas Coasts data | 2 | |
| COB | Caligari TrueSpace Object | 158 | |
| COB | Caligari TrueSpace Object (v1.x) | 19 | |
| COB | Maxon Cinema 4D COFFEE Binary | 6 | |
| COD | Atlantis Word Processor encrypted document | 3 | |
| COD | Blackberry Binary Executable | 20 | |
| COD | Forte Agent Charmap | 38 | fenixproductions |
| COD | Lightning Strike bitmap | 4 | |
| COD | Makkoya COD | 2 | |
| COD/LOD/OVR | Microsoft p-code | 7 | |
| COD | Oberon V4 AsciiCoder archive | 8 | Romiras |
| COD | PlayStation RSD Coordinates (gen) | 6 | |
| COD | PlayStation RSD Coordinates (v3.0) | 2 | |
| COD | Standard Word printer control Codes | 7 | |
| COD | Thails Printer Code | 19 | |
| CODE-WORKSPACE | twinBASIC Code Workspace | 16 | |
| COF | Quartus Conversion setup File | 13 | |
| COK | Cookeo recipe | 5 | |
| COL | Buze Color theme | 17 | |
| COL | Dark Legions Color palaette | 17 | |
| COL | Grand Theft Auto 3 collision data | 5 | |
| COL | HTML Help Collection | 6 | |
| COL | Jeskola Buzz theme | 8 | |
| COL | Jeskola Buzz theme (with rem) | 5 | |
| COL | Makkoya palette | 4 | |
| COL | PPrint Color map | 2 | |
| COLOR/COLOR1 | Montage Color data | 8 | |
| COLORS | Ardour theme | 16 | |
| COM | 16bit COM 22NICE loader | 8 | |
| COM | 16bit COM ComprEXE compressed executable (v1.0) | 47 | |
| COM | 16bit COM Demonlord Generic Patcher (v1.00) | 5 | |
| COM | 16bit COM Factor - FoXCoRe crack | 11 | |
| COM | 16bit COM LHarc SFX archive executable | 3 | |
| COM | 16bit COM NETPIC converted GIF | 34 | |
| COM | 16bit COM NoStrAdAmuS - LineZer0 patch | 4 | |
| COM | 16bit COM Reanimator Of Lash patch | 21 | |
| COM | 16bit COM Text File Reader | 19 | |
| COM | 16bit COM ZBasic compiled (v4.77) | 14 | |
| COM | 16bit COM executable Asc2Com (v1.10b) | 4 | |
| COM | 16bit COM executable Asc2Com (v1.25) | 11 | |
| COM | 16bit COM executable Asc2Com (v1.30) | 4 | |
| COM | 16bit COM executable Asc2Com (v1.x) | 6 | |
| COM | 16bit COM executable Asc2Com (v2.0x) | 30 | |
| COM | 16bit COM executable BAT2EXEC v1.3 | 65 | |
| COM | 16bit COM executable BAT2EXEC v1.5 | 3 | |
| COM | 16bit COM executable BATtoCOM | 14 | |
| COM | 16bit COM executable BAutoCRK (v1.20) | 61 | |
| COM | 16bit COM executable Banshee patch/crack | 8 | |
| COM | 16bit COM executable BatLite (v1.x) | 4 | |
| COM | 16bit COM executable DOCMAKER (v1.2) | 5 | |
| COM | 16bit COM executable EXE2COM (v2.00) | 13 | |
| COM | 16bit COM executable Easy Crack patcher (v1.1) | 16 | |
| COM | 16bit COM executable Easy Fix patcher (v1.3) | 7 | |
| COM | 16bit COM executable Easy Fix patcher (v1.4) | 36 | |
| COM | 16bit COM executable Easy Fix patcher (v1.7) | 3 | |
| COM | 16bit COM executable Easy Fix patcher (v1.x) | 9 | |
| COM | 16bit COM executable FMAC2COM | 8 | |
| COM | 16bit COM executable Freeloader | 3 | |
| COM | 16bit COM executable Graham's TXT2COM (generic) | 30 | |
| COM | 16bit COM executable Graham's TXT2COM (v1.0) | 5 | |
| COM | 16bit COM executable Graham's TXT2COM (v1.1) | 3 | |
| COM | 16bit COM executable Graham's TXT2COM (v2.0) | 6 | |
| COM | 16bit COM executable Graham's TXT2COM (v2.03) | 6 | |
| COM | 16bit COM executable Graham's TXT2COM (v2.06) | 10 | |
| COM | 16bit COM executable Graham's TXT2COM (v2.1) | 4 | |
| COM | 16bit COM executable Graham's TXT2COM (v2.10) | 8 | |
| COM | 16bit COM executable Graham's TXT2COM (v2.2) | 6 | |
| COM | 16bit COM executable Graham's TXT2PAS (v2.03) | 4 | |
| COM | 16bit COM executable Graham's TXT2PAS (v2.06) | 4 | |
| COM | 16bit COM executable Graham's TXT2PAS (v2.10) | 3 | |
| COM | 16bit COM executable Graham's TXT2RES (v1.0) | 3 | |
| COM | 16bit COM executable Graham's TXT2RES (v2.03) | 3 | |
| COM | 16bit COM executable Graham's TXT2RES (v2.06) | 3 | |
| COM | 16bit COM executable Graham's TXT2RES (v2.10) | 3 | |
| COM | 16bit COM executable LDIFF SFX (v2.0) | 2 | |
| COM | 16bit COM executable NETSEND (v1.0) | 7 | |
| COM | 16bit COM executable NETSEND (with intro) (v1.0) | 6 | |
| COM | 16bit COM executable NETSEND (with short intro) (v1.0) | 10 | |
| COM | 16bit COM executable PCX2COM | 5 | |
| COM | 16bit COM executable SHOW (generic) | 23 | |
| COM | 16bit COM executable THE _RUDEBOY_ patcher | 6 | |
| COM | 16bit COM executable TXT2COM (Uwe Schlenther, new) | 4 | |
| COM | 16bit COM executable TXT2COM (Uwe Schlenther, old) | 5 | |
| COM | 16bit COM executable Wiering's TXT2COM (v1.1) | 5 | |
| COM | 16bit DOS COM $UPD encrypted | 4 | |
| COM | 16bit DOS COM ABK scrambled (v1.00) | 99 | |
| COM | 16bit DOS COM AVPACK compressed | 15 | |
| COM | 16bit DOS COM BIN-Lock repackaged | 8 | |
| COM | 16bit DOS COM C-Crypt protected (v1.02) | 5 | |
| COM | 16bit DOS COM C.O.P. obfuscated | 13 | |
| COM | 16bit DOS COM C0NtRiVER protected | 5 | |
| COM | 16bit DOS COM CC packed (v2.61b) | 9 | |
| COM | 16bit DOS COM CC286 encrypted (v2.1) | 95 | |
| COM | 16bit DOS COM COMLOCK encrypted (v0.10) | 3 | |
| COM | 16bit DOS COM COMPACK compressed | 14 | |
| COM | 16bit DOS COM CRYPT (Dismember) encrypted (v1.7) | 16 | |
| COM | 16bit DOS COM CRYPTEXE encrypted (v1.00) | 7 | |
| COM | 16bit DOS COM ComProtector encrypted (v1.0) | 13 | |
| COM | 16bit DOS COM Compact (KP) compressed (v1.05) | 16 | |
| COM | 16bit DOS COM Crack Soft's cryptor encrypted | 4 | |
| COM | 16bit DOS COM Crypt (Alex) encrypted (v1.0) | 9 | |
| COM | 16bit DOS COM Crypt.Trivial.173 encrypted | 8 | |
| COM | 16bit DOS COM CryptCOM encrypted | 6 | |
| COM | 16bit DOS COM DCCrypt encrypted | 13 | |
| COM | 16bit DOS COM DIET compressed (v1.00) | 3 | |
| COM | 16bit DOS COM DIET compressed (v1.20) | 4 | |
| COM | 16bit DOS COM DS-COM Crypt protected (v1.27) | 3 | |
| COM | 16bit DOS COM DS-COM Crypt protected (v1.31) | 3 | |
| COM | 16bit DOS COM DaRKSToP encrypted | 4 | |
| COM | 16bit DOS COM EPW password protected (generic) | 6 | |
| COM | 16bit DOS COM EPW password protected (v1.3) | 4 | |
| COM | 16bit DOS COM EXETOOLS encrypted (v2.0) | 4 | |
| COM | 16bit DOS COM EXETOOLS encrypted (v2.1) | 4 | |
| COM | 16bit DOS COM Encriptor scrambled (v1.00) | 99 | |
| COM | 16bit DOS COM ExOM encrypted | 19 | |
| COM | 16bit DOS COM FDS-CP protected | 7 | |
| COM | 16bit DOS COM GRABBER (generic) | 20 | |
| COM | 16bit DOS COM HDKPROTC protected (v1.1a) | 4 | |
| COM | 16bit DOS COM IBM Encryptor encrypted (v1.00) | 99 | |
| COM | 16bit DOS COM Inbuild encrypted (v1.0) | 4 | |
| COM | 16bit DOS COM Khrome Crypt encrypted | 5 | |
| COM | 16bit DOS COM LockProg protected (v0.5a) | 4 | |
| COM | 16bit DOS COM MASK encrypted (v2.x) | 11 | |
| COM | 16bit DOS COM MCcrypt encrypted | 4 | |
| COM | 16bit DOS COM MSCC protected | 4 | |
| COM | 16bit DOS COM Maverick's C0DER protected | 10 | |
| COM | 16bit DOS COM MegaShield encrypted | 5 | |
| COM | 16bit DOS COM Mess encrypted (v1.x) | 10 | |
| COM | 16bit DOS COM PC0RSAiR encrypted (type2) | 4 | |
| COM | 16bit DOS COM PKLite compressed (generic) | 59 | |
| COM | 16bit DOS COM PKLite compressed (v1.00) | 32 | |
| COM | 16bit DOS COM PKLite compressed (v1.03) | 28 | |
| COM | 16bit DOS COM PKLite compressed (v1.15) | 37 | |
| COM | 16bit DOS COM PKLite compressed (v1.20) | 32 | |
| COM | 16bit DOS COM PKLite compressed (v1.50) | 32 | |
| COM | 16bit DOS COM PKLite compressed (v2.01) | 5 | |
| COM | 16bit DOS COM RCC II encrypted (v0.51) | 11 | |
| COM | 16bit DOS COM RNC / PRO-PACK compressed | 20 | |
| COM | 16bit DOS COM RUCC/386 compressed (generic) | 6 | |
| COM | 16bit DOS COM RUCC/386 compressed (v1.01) | 10 | |
| COM | 16bit DOS COM RUCC/386 compressed (v2.3) | 11 | |
| COM | 16bit DOS COM Ryptor encrypted | 9 | |
| COM | 16bit DOS COM SCRAM! encrypted (v0.8) | 3 | |
| COM | 16bit DOS COM SUN-PROT protected | 5 | |
| COM | 16bit DOS COM SnoopStop protected (v1.15) | 5 | |
| COM | 16bit DOS COM Spacemaker compressed | 26 | |
| COM | 16bit DOS COM T-PACK compressed (v0.5) | 6 | |
| COM | 16bit DOS COM TPC scrambled (v1.00) | 99 | |
| COM | 16bit DOS COM Text File Reader (v2.20) | 6 | |
| COM | 16bit DOS COM The WiZ Cryptor encrypted (v1.00a) | 3 | |
| COM | 16bit DOS COM TurboBat compiled batch (unreg) | 4 | |
| COM | 16bit DOS COM UPX compressed | 5 | |
| COM | 16bit DOS COM USCC encrypted | 6 | |
| COM | 16bit DOS COM VICKING protected | 4 | |
| COM | 16bit DOS COM Vacuum compressed (v0.01c) | 108 | |
| COM | 16bit DOS COM X-pack compressed (v1.3.4-1.3.6) | 22 | |
| COM | 16bit DOS COM X-pack compressed (v1.3.9) | 11 | |
| COM | 16bit DOS COM X-pack compressed (v1.4.0) | 10 | |
| COM | 16bit DOS COM X-pack compressed (v1.4.1-1.4.5) | 50 | |
| COM | 16bit DOS COM XPACK compressed (v1.67) | 6 | |
| COM | 16bit DOS COM XcomOR encrypted (v0.99) | 4 | |
| COM | 16bit DOS COM aPACK compressed (v0.91b-0.94) | 19 | |
| COM | 16bit DOS COM aPACK compressed (v0.96b) | 8 | |
| COM | 16bit DOS COM aPACK compressed (v1.00) | 9 | |
| COM | 16bit DOS COM executable COMT text converted (1->2 enc.) | 4 | |
| COM | 16bit DOS COM executable COMT text converted (3->4 enc.) | 8 | |
| COM | 16bit DOS COM executable Com2Txt (Dark Stalker) (v1.2a) | 13 | |
| COM | 16bit DOS COM executable c2t1 text converted | 4 | |
| COM | 16bit DOS COM executable c2t2 text converted | 4 | |
| COM | 16bit DOS COM jmt-cp encrypted (v0.5) | 53 | |
| COM | 16bit DOS COM mCrypt encrypted (v0.1b) | 5 | |
| COM | 16bit DOS COM nh encrypted | 60 | |
| COM | 16bit DOS COM sMAUG ANSI executable (v1.0) | 9 | |
| COM | 16bit DOS COM xcom ASCII encoded (v2.2) | 4 | |
| COM | 16bit DOS Command Borland C++ (generic) | 9 | |
| COM | 16bit DOS Command Borland Turbo C (generic) | 11 | |
| COM | 16bit DOS command MoonRock+Arrowsoft Asm. | 16 | |
| COM | 8bit CP/M BasicZ compiled (v1.11) | 11 | |
| COM | 8bit CP/M-80 COM BASCOM compiled (v5.30) | 17 | |
| COM | 8bit CP/M-80 COM Turbo Pascal compiled (generic) | 9 | |
| COM | 8bit CP/M-80 COM Turbo Pascal compiled (v3.00) | 11 | |
| COM | ASIC compiled DOS COM | 8 | |
| COM | Borland Turbo Pascal 2.0x DOS Command | 13 | |
| COM | Borland Turbo Pascal 3.0x DOS Command | 18 | |
| COM | COM-Pack library | 4 | |
| COM | CP/M 3 COM binary (no RSX) | 2 | |
| COM | CP/M Kaypro S-BASIC compiled (v5.4) | 5 | |
| COM | ComCryptor 98 encrypted 16bit COM DOS executable | 12 | |
| COM | Cosmopolitan APE binary loader (Win) | 15 | |
| COM | DIGIPAK audio driver | 48 | |
| COM | EICAR antivirus test file | 5 | |
| COM/IMG | FGT virus infected 16-bit COM executable | 6 | |
| COM | ForthCMP compiled 16bit executable | 10 | |
| COM | ICE compressed/scrambled DOS Command | 3 | |
| COM | LGLZ compressed DOS command | 16 | |
| COM | MIDIPAK audio driver | 10 | |
| COM | OPTIKS Quick View / Self Scrolling COM | 2 | |
| COM | P-Screen COM Screen | 8 | |
| COM | PMarc CP/M SFX archive | 2 | Joerg Jenderek |
| COM | PMexe CP/M compressed executable (v2.00) | 6 | |
| COM | PMsfx CP/M self-extracting archive (v2.00) | 6 | |
| COM | PopCom CP/M compressed executable | 5 | Joerg Jenderek |
| COM | Portfolio BASIC compiled 16 bit MS-DOS binary | 18 | |
| COM | SCRNCH compressed 16bit DOS COM executable | 7 | |
| COM | Shrink packed DOS Command (v1.0) | 15 | |
| COM | Shrink packed DOS Command (v2.0) | 15 | |
| COM | Six-2-Four (624) packed DOS Command | 13 | |
| COM | TheDraw COM screen save (generic) | 11 | |
| COM | TheDraw COM screen save (type 0) | 2 | |
| COM | TheDraw COM screen save (type 1) | 2 | |
| COM | TheDraw COM screen save (type 2) | 2 | |
| COM | Topologika adventures 8086 interpreter | 13 | |
| COM | TurboBat 16bit compiled batch (v3.x, unreg) | 7 | |
| COM | XEQ executable Command library | 12 | |
| COM | ZBASIC MS-DOS COM executable (v4.0x) | 6 | |
| COM | com2txt 16bit DOS executable (new-alt) | 5 | |
| COM | com2txt 16bit DOS executable (new-default) | 7 | |
| COM | com2txt 16bit DOS executable (old) | 3 | |
| COMFYCAKESSAVE-MS | Comfy Cakes saved game | 6 | |
| COMICDOC | Comic Life Document | 81 | |
| COMICLIFE | Comic Life Document | 7 | |
| COMPANYLOGO | CompanyLogoDesigner project file | 429 | Thomas Holz |
| COMPILED | Flare3D Shader Language Compiled | 38 | |
| COMPOSITEFONT | Windows Composite Font | 13 | Stef |
| COMX | COMX-35 program | 448 | |
| CON | ArtCAM post processor Configuration | 6 | |
| CON | ArtCAM post processor Configuration (with rem) | 208 | |
| CON | Virtual Vector Configuration | 11 | |
| CONF | DOSBox Configuration | 5 | |
| CONF | DOSBox Configuration (with rem) | 4 | |
| CONF | Hydrogen Configuration | 4 | |
| CONF | fswebcam configuration | 4 | |
| CONF | psitree router configuration | 11 | |
| CONFIG | Ami-Back Configuration (v2.00) | 2 | |
| CONFIG | AmiDock Configuration | 2 | |
| CONFIG/XML | DockPanel configuration | 5 | |
| CONFIG | EasyBase DB Configuration | 3 | |
| CONFIG | Foreign Language Master Configuration | 10 | |
| CONFIG | Gazebo model Configuration | 88 | |
| CONFIG | TUMMY Configuration | 13 | |
| CONTACT | Windows Contact | 20 | |
| CONTEST | BAMZOOKi Contest | 18 | |
| CONTROL | HEC-HMS Control specifications data | 3 | |
| COOKIE/TXT | libwww-perl cookie_jar | 5 | |
| COORDS | Wildfire Benoit Coordinates | 50 | |
| COP/ET/ETC/T | E-Tracker chiptune | 10 | |
| COR | 42's Core War compiled program | 78 | |
| COR | WinArcadia Recording/macro | 7 | |
| CORE | Core Design module | 7 | |
| COS | OMP Skin | 5 | |
| COS | WinArcadia Saved State | 27 | |
| COUNTRY | AmiAtlas Country data | 3 | |
| CO_/EX_/SY_ | MRNZ installer/obfuscated format | 83 | |
| CP$ | Compressed data | 47 | |
| CP2 | PSFTools CodePage map | 48 | |
| CP2 | SNATCH-IT disk image | 3 | |
| CPA | CADSTAR PCB Archive (ASCII, DOS/Win) | 4 | |
| CPA | CADSTAR PCB Archive (ASCII, Linux) | 4 | |
| CPAL | Plotter3D Palette | 11 | |
| CPC/CPI | Cartesian Perceptual Compression Image bitmap | 28 | |
| CPCK | Professor Layton game data package | 2 | |
| CPD | BioCAD CHM format (Compound) | 4 | |
| CPE | Windows FAX cover | 4 | |
| CPF | Abuse Level cached data | 20 | |
| CPF | Cal3D morphanimation File | 2 | |
| CPF | Canon EOS Custom Picture Profile | 13 | |
| CPF | Consolidated Laser Ranging Prediction Format | 5 | |
| CPG | Clip Studio Page | 8 | |
| CPG | Cool Page Project | 24 | |
| CPG | FontLab Codepage Definition | 6 | |
| CPH | Corel PrintHouse image | 10 | |
| CPI | AVCHD Clip Information | 9 | |
| CPI | DR-DOS International Code Page Info | 2 | |
| CPI | MS-DOS International Code Page Info | 19 | |
| CPI | Sietronics CPI XRD format | 9 | |
| CPIO | CPIO archive (binary) | 4 | |
| CPIO | CPIO archive (byte swapped binary) | 6 | |
| CPIO | CPIO archive (portable new) | 0 | Joerg Jenderek |
| CPIO | CPIO archive (portable old) | 0 | Joerg Jenderek |
| CPIO | CPIO archive (portable with CRC) | 0 | Joerg Jenderek |
| CPIO | CPIO archive (portable) | 5 | |
| CPJ | WinOnCD Project | 8 | |
| CPK | Casio Packed format | 51 | |
| CPK | Eldritch Packed game data | 2 | |
| CPK/CAK/FILM | Sega CPK video | 15 | |
| CPL | Asymetrix Compel v1 Presentation | 11 | Tyler Thorsted |
| CPL | Asymetrix Compel v2 Presentation | 7 | Tyler Thorsted |
| CPL | Corel Color Palette | 101 | |
| CPL | Corel Color Palette (alt) | 26 | |
| CPL | Windows Control Panel Item (generic) | 82 | yangaoquan |
| CPN | Age of Empires Campaign | 4 | |
| CPO | Compo composition | 4 | |
| CPO | Corel Print Office image | 3700 | |
| CPPO | APPS Software International C++ Object format | 4 | |
| CPR | CPC Plus Cartridge image | 26 | |
| CPR | Cubase Project | 26 | |
| CPROJECT | Eclipse CDT Project settings | 50 | |
| CPS | Corel PhotoHouse image | 12 | |
| CPS | The Powder Toy Compressed Powder Save | 12 | |
| CPT | Compact Pro compressed archive | 32 | |
| CPT | Corel Photo Paint bitmap (generic) | 161 | Joerg Jenderek |
| CPT | Corel Photo Paint bitmap (v7) | 33 | |
| CPT | Corel Photo Paint bitmap (v8) | 3 | |
| CPT | Corel Photo Paint bitmap (v9) | 3 | |
| CPT | DTS Compact audio | 3 | |
| CPT | Mac Compact Pro archive | 11 | |
| CPV | Grand Prix 500 2 game data | 5 | |
| CPV | Polytron VCS logfile | 2 | |
| CPX | Atari Control Panel applet | 3 | |
| CPX | FreeDOS Code Page Information | 19 | |
| CPX/FLT | ImgStar bitmap | 3 | |
| CPX | Windows Codepage translator | 8 | |
| CR | IFF Cruncher compressed data | 5 | |
| CR2 | Canon RAW 2 format | 12 | |
| CR2 | Poser character rigging | 37 | |
| CR3 | Canon Digital Camera RAW image | 22 | Tyler Thorsted |
| CR3 | CoolReader 3 cache | 4 | |
| CR8 | Cre8or model/project | 10 | |
| CRAFT | Kerbal Space Program (KSP) spacecraft | 38 | |
| CRAM | Compressed Alignment format | 2 | |
| CRASH | iOS Crash report (old-style) | 47 | |
| CRASH | macOS Crash log (old-style) | 40 | |
| CRATE | Serato Scratch Live Crate playlist | 4 | |
| CRC | Total Commander CRC file | 2 | |
| CRD | PPC Organiser Card | 8 | |
| CRD | Windows Cardfile database (Unicode) | 3 | |
| CRD | Windows Cardfile database (original) | 8 | |
| CRD | Windows Cardfile database (with OLE 1.0 objects) | 3 | |
| CRE | Infinity Engine Creature (generic) | 6170 | Sam. |
| CRE | Infinity Engine creature (v1.0) | 5 | |
| CRE | Infinity Engine creature (v1.2) | 5 | |
| CRE | Infinity Engine creature (v2.2) | 2 | |
| CRE | Infinity Engine creature (v9.0) | 2 | |
| CRF | Cal3D material File | 5 | |
| CRF/CCRF/PRN | Calcomp raster bitmap | 90 | |
| CRF | Cryo Interactive Font | 7 | |
| CRG | Calamus Raster Graphic bitmap | 4 | |
| CRH | Links 386 Pro / Microsoft Golf Course | 20 | |
| CRI | Calamus Raster Information | 48 | |
| CRI | Crush archive Index | 3 | |
| CRL | Calamus Ruler List | 2 | |
| CROCOTILE | Crocotile 3d project | 32 | |
| CROMFS | Compressed ROM FileSystem image | 2 | |
| CRP | Colossal Raw asset Package | 4 | |
| CRPLUGIN | ComicRack plugin | 5 | |
| CRS | StepMania Course | 4 | |
| CRS | WordPerfect Caracter/Font resource | 4 | |
| CRT | C64 Cartridge image | 22 | TLG |
| CRT | Security Certificate | 6 | |
| CRT | X.509v3 security certificate | 17 | |
| CRU | Crush archive | 11 | |
| CRV | Corel PhotoPaint Tone Curve | 10 | |
| CRV | vCarve Pro design | 7 | |
| CRV3D | Vectric Aspire 3D drawing | 20 | |
| CRW | Canon RAW format | 156 | Roberto 'rbnet' Bolli |
| CRX | Google Chrome Extension | 13 | |
| CRYPROJECT | CryEngine Project (generic) | 6 | |
| CRYPROJECT | CryEngine Project (v5) | 5 | |
| CRYPT | Cryptx encrypted data | 2 | |
| CRYPT | WhatsApp stored messages | 2 | |
| CRYPT7 | WhatsApp encrypted database | 10 | |
| CRYPTOMITE | CryptoMite encrypted | 21 | |
| CRYPTOMITE | CryptoMite encrypted archive | 5 | |
| CRYSISJMSF | Crysis saved game | 14 | |
| CRYSISPSF | Crysis Warhead saved game | 5 | |
| CS | ColorSchemer Studio Color Scheme | 19 | |
| CS0 | Callus savestate | 5 | |
| CSA | CADSTAR Schematic Archive (ASCII, DOS/Win) | 6 | |
| CSA | CADSTAR Schematic Archive (ASCII, Linux) | 3 | |
| CSA | CSArc compressed archive | 2 | |
| CSA | Compute Shaders Archive | 10 | |
| CSAPLAN | SPSS Analysis Plan | 7 | |
| CSC | CSC compressed archive | 3 | |
| CSC | Canon Design Essentials printer info | 24 | |
| CSCFG | Azure Service Configuration Schema | 6 | |
| CSCFG | Azure Service Configuration Schema (UTF-8) | 5 | |
| CSCHEME | Caffeine Scheme | 44 | |
| CSD | Cabbage script | 83 | |
| CSD | Cabbage script (with rem) | 158 | |
| CSD | CorelDRAW Character Set | 2 | |
| CSD | Csound unified file format | 52 | |
| CSD | Singer embroidery design | 4 | |
| CSDEF | Azure Service Definition schema | 8 | |
| CSDL | ADO.NET Conceptual Schema Definition Language | 8 | |
| CSF | Adobe Color Settings File | 16 | |
| CSF | Cal3D Skeleton File | 7 | |
| CSF | CodeSuite Filter | 5 | |
| CSF | Content Sealed Format | 8 | |
| CSF | GeoMedia Coordinate System File | 5 | |
| CSF | Makkoya CSF | 133 | |
| CSF | Quartus Compiler Setting File | 15 | |
| CSG | The Virtual ColecoVision Save Game | 3 | |
| CSH | Adobe Photoshop Custom Shape | 13 | |
| CSL | Calamus textStyle List | 2 | |
| CSL | Citation Style Language | 6 | |
| CSL | Corel Symbol Library | 4 | Joerg Jenderek |
| CSL | Corel Symbol Library (zipped v17-22) | 6 | Joerg Jenderek |
| CSL | Corel Symbol Library (zipped v5-7) | 3 | Joerg Jenderek |
| CSL | Corel Symbol Library (zipped v8-16.3) | 3 | Joerg Jenderek |
| CSM | CASL compiled PalmPilot program | 15 | |
| CSM | Flexi driver configuration | 136 | |
| CSM | Motion Capture File Format | 125 | Alex Paven |
| CSO | DirectX Compiled Shader Object | 28 | |
| CSP | Aladdin 4D Spline | 13 | |
| CSP | AudioZip encoded audio | 7 | |
| CSP | CASLwin executable | 15 | |
| CSP | Cinespace LUT (1D) | 80 | |
| CSP | Cinespace LUT (3D) | 58 | |
| CSP | Creative Signal Processor microcode | 12 | |
| CSP | WebCell Script Project | 4 | |
| CSPEC | Ghidra Compiler Specification | 90 | |
| CSPLAN | SPSS Sampling Plan | 5 | |
| CSPROJ | Visual Studio C# Project | 26 | Ryan Jones |
| CSR | Certificate Signing Request | 16 | Joerg Jenderek |
| CSS | Cartoon Studio Script | 6 | |
| CST | Amazon game data (Atari ST) | 28 | |
| CST/NTS/SYN | Banner Blue Movie Guide Library Auxiliary File | 3 | |
| CST | CatSystem2 CatScene Script | 4 | |
| CST | Director Cast data | 12 | |
| CST | SMS Coastline data | 2 | |
| CSV | HarmonyCSV format | 9 | |
| CSV | RaceRender data format (advanced) | 4 | |
| CSV | Weather Analytics data | 3 | |
| CSW | Compressed Square Wave (v1.1) | 11 | |
| CSW | Compressed Square Wave (v2.0) | 6 | |
| CSW | Corel/WordPerfect Setup information | 21 | |
| CSY | CARA 3D group object | 19 | |
| CT | Amiga Catalog Translation | 37 | |
| CT | Cheat Engine Cheat Table | 6 | |
| CT | Cheat Engine Cheat Table (XML) | 17 | |
| CT | CheeseCutter Tune | 14 | |
| CT | CyberTracker 64 chiptune | 32 | |
| CT | Cybertracker module | 4 | |
| CT | Scitex Continuous Tone bitmap | 2 | |
| CTB | AutoCAD Color-Based Plot Style | 119 | Peter Glasl |
| CTB | CherryTree note (SQLite) | 6 | |
| CTC | KretSim Circuit | 11 | |
| CTD | CherryTree note (XML) | 4 | |
| CTD | Sony ClickToDvd Project | 4 | |
| CTE | Classical Text Editor document (v7) | 6 | |
| CTE | Classical Text Editor document (v8) | 6 | |
| CTE | Classical Text Editor document (v9) | 7 | |
| CTF | Casio Calculator Text Format program | 116 | |
| CTF | WhereIsIt? catalog file | 10 | fenixproductions |
| CTG | Canon Photo Info file | 12 | |
| CTH | Wintertree Thesaurus Engine DB | 5 | |
| CTI | Bitz and Pixels XML (ASCII)Report Template Info for collectorz.com products | 18 | Robert Williams |
| CTL | FaceGen Controls/distribution densities | 2 | |
| CTL | LabVIEW Control data | 17 | |
| CTL | Phoenix Visual Designer third party control | 11 | |
| CTL | Visual Basic user-defined control file | 8 | |
| CTM | Charpad format (generic) | 10 | |
| CTM | OpenCTM 3D mesh | 10 | |
| CTP | CrazyTalk Project | 7 | Stef |
| CTR | ChemDraw Template | 24 | |
| CTR | CorelTRACE configuration | 18 | |
| CTS | TreeSheets project | 14 | |
| CTT | MSN Messenger Saved Contact List | 5 | |
| CTW | Casio Disc Title Printer label | 8 | |
| CTW | Context tree weighing (CTW) compressed file | 9 | |
| CTX | Gasteiger group CTX | 7 | |
| CTX | Microsoft tutorial Course Text | 14 | |
| CTX | Softdisk Text Compressor compressed data | 2 | |
| CTX | Sundial Clearlook document | 22 | |
| CTXT | BlueJ Class context | 16 | |
| CTY | SimCity City | 10 | |
| CUB | Isis Cube data | 9 | |
| CUB | SeeYou Airspace | 3 | |
| CUBE | Cube LUT format | 4 | |
| CUBE | Cube LUT format (with rem) | 6 | |
| CUBE | Gaussian Cube data | 4 | |
| CUE | ISO CDImage cue/description - Data | 6 | |
| CUE | ISO CDImage cue/description - Data (with remark) | 8 | |
| CUE | Microsoft Cue Cards data | 3 | |
| CUEPROFILE | Corsair Utility Engine Profile (v2) | 278 | |
| CUI | AdaProbe debugging info | 6 | |
| CUI | AutoCAD Custom User Interface | 10 | |
| CUI | QuarkXPress Color Library UI specs | 14 | |
| CUIX | AutoCAD Custom User Interface | 28 | |
| CUR | Windows Cursor shape | 121 | |
| CURAPROFILE | Cura Profile settings | 20 | |
| CURSORFX | CursorFX theme | 14 | |
| CURXPTHEME | CursorXP theme | 13 | |
| CUS | Delitracker Customplay module | 365 | |
| CUS | Flexidump Custom printer driver | 55 | |
| CUSTOMDESTINATIONS-MS | Windows Jump List | 29 | |
| CV4/CVW | CodeView colors (v4.x) | 8 | |
| CV5 | Canvas 5 document | 21 | |
| CVA | Compaq Diagnostics | 33 | |
| CVC | Cybiko Video Container video | 10 | |
| CVD | Calamus Vector Document | 18 | |
| CVD/CLD/CUD/INFO | Clam AntiVirus Database | 10 | |
| CVF | Jet-VoiceMail audio data | 3 | |
| CVG | Calamus Vector Graphic | 12 | |
| CVH | CD Viewer Help | 7 | |
| CVI | Canvas Image File | 4 | Tyler Thorsted |
| CVP | WinFax CoverPage image | 319 | Tyler Thorsted |
| CVR | MultiExpress Data and Fax Cover | 4 | |
| CVR | QuickLink Fax Cover | 2 | |
| CVS | Satori Paint Canvas | 40 | |
| CVT | GEOS ConVerT container format | 4 | |
| CVX | Covox ADPCM encoded audio | 8 | |
| CVZ | VZ200 Cassette image | 25 | |
| CWA | C-Worthy Form (v2.x) | 5 | |
| CWA | Continuous Wave Accelerometry data | 2 | |
| CWAV | CompressWave audio | 2 | |
| CWAV/BCWAV | Nintendo 3DS Binary CTR Wave audio | 4 | |
| CWD | Cardwar Cards deck | 8 | |
| CWF | Compression Workshop compressed archive | 4 | |
| CWF | Evergreen Notes for Windows (v1.0) | 3 | |
| CWG | Artworx drawing | 7 | |
| CWG | Castle of the Winds saved Game | 4 | |
| CWK | Claris Works document | 35 | |
| CWK | Claris Works text (MacBinary) | 7 | |
| CWK | Claris Works word processor (MacBinary) | 7 | |
| CWL | CROWD ANIM game data format | 9 | |
| CWL | ClarisWorks Library (v5) | 25 | |
| CWL | CorelCAD Custom Views | 11 | |
| CWP | Cakewalk SONAR project | 20 | |
| CWR | WrapCandy template | 11 | |
| CWS | Combustion v2 WorkSpace project | 6 | Alex Paven |
| CWT | CWTool disk image (binary) (v1) | 3 | |
| CWT | CWTool disk image (binary) (v2) | 2 | |
| CWT | CWTool disk image (binary) (v3) | 2 | |
| CWT | CWTool disk image (text) | 2 | |
| CWW | Crossword Weaver puzzle | 10 | |
| CWY | SongTrix Style | 27 | |
| CXF | CTXf compressed archive | 3 | |
| CXF | CXF Vector Map Format (v1.x) | 2 | |
| CXF | CXF Vector Map Format (v2.x) | 2 | |
| CXF | CXF Vector Map Format (v3.x) | 2 | |
| CXF | Cuttlefish eXtended Format | 4 | |
| CXF | CxF3 - Color Exchange Format | 7 | |
| CXF | Picasa collage | 3 | |
| CXF | QCad Font | 12 | |
| CXI | Coherent X-ray Imaging format | 5 | |
| CXT | Adobe Director Protected Cast (39VM) | 3 | |
| CXT | Adobe Director Protected Cast (MC95) | 2 | |
| CXT | Adobe Director Protected Cast (MV93) | 11 | |
| CYCOMP | Cypress Components package | 11 | |
| CYDWR | Cypress PSoC Design-Wide Resource | 20 | |
| CYDWR | Cypress PSoC Design-Wide Resource (XML) | 13 | |
| CYG | CryoGen ECC data | 4 | |
| CYMACRO | Cypress PSoC top-level Creator Macro | 12 | |
| CYP | Crocodile Physics Simulation | 28 | |
| CYPRJ | Cypress PSoC Creator Project | 29 | |
| CYSCH | Cypress PSoC top-level Creator Schematic | 61 | |
| CYSYM | Cypress PSoC top-level Creator Symbol | 23 | |
| CZD | Crash Zone Drawing | 4 | |
| CZI | Carl Zeiss Image data | 16 | |
| CZIP | ZipGenius encrypted compressed archive | 6 | |
