| Extension | File Type | Files scanned | Contributor |
| D | GBG DraftMaker V6.0 drawing | 5 | Dreadnought |
| D | SPPACK sampled data audio | 14 | |
| D2S | Diablo II Saved Game File | 6 | .Cryorb |
| D2V | DGIndex project | 4 | |
| D3D | CorelDream 3D drawing | 14 | |
| DAA | PowerISO Direct-Access-Archive image | 7 | |
| DAE | COLLADA digital asset document | 5 | |
| DARK | OpenDark archiver compressed file | 3 | |
| DAT | AVG 6 Integrity Database | 2 | |
| DAT | Allegro Packfile (compressed) | 2 | |
| DAT | Allegro Packfile (uncompressed) | 2 | |
| DAT | Allegro data (generic) | 5 | |
| DAT | EasyRecovery saved recovery state | 2 | |
| DAT | Guild Wars data | 1 | |
| DAT | Inno Setup Uninstall Log | 32 | |
| DAT | Madden 2004 data file | 2 | |
| DAT | MapInfo tabular data | 22 | Rizla99 |
| DAT | Microsoft Internet Explorer cache | 6 | |
| DAT | MirandaIM database-archive file | 67 | fenixproductions |
| DAT | Norton Disk Doctor UnDo file | 2 | |
| DAT | Palm Desktop DateBook | 2 | |
| DAT | Paul Robotham Music | 19 | |
| DAT | PestPatrol data / scan strings | 3 | |
| DAT | Propilkki data | 2 | |
| DAT | R4 cheat codes | 5 | |
| DAT | Runtime Software compressed disk image | 2 | |
| DAT | Shareaza thumb | 3 | |
| DAT | Sony Network Walkman MP3 file storage | 2 | |
| DAT | TomTom traffic data | 5 | |
| DAT | UFOOrbitV2/UFOAnalyzerV2 map | 3 | |
| DAT | VideoCD MPEG | 2 | |
| DAT | Windows 9x Registry Hive | 6 | |
| DAT | Yahoo Chuzzle Puzzle save game | 6 | |
| DAT | Zinc data | 2 | |
| DAT/FH11 | Freehand 11 Project | 30 | |
| DAT/LOG | LabVIEW binary Datalog | 6 | |
| DAX | DAKX compressed audio | 18 | |
| DAX | DAX compressed CD image | 4 | |
| DAX | OrangeCD theme | 12 | Holger Burghardt |
| DB | DIGIBooster module/song | 2 | |
| DB | Palm Zire Photo database | 2 | |
| DB | Windows XP Thumbnail Database | 33 | |
| DBA | DateBook Archive | 10 | |
| DBB | Skype user data | 19 | |
| DBD | DemoShield Project | 12 | |
| DBF | Psion serie 3 Database | 2 | |
| DBF | Sybase iAnywhere database files | 299 | Knuth Konrad |
| DBF | Table Apollo (DBF) Database Engine | 9 | Knuth Konrad |
| DBF | Table MS Visual FoxPro 7 | 192 | Nicola Marangon |
| DBF | XBase DataBase (generic) | 70 | |
| DBG | ASIC compiler debug info | 5 | |
| DBG | InstallShield debug symbols | 4 | |
| DBI | Isearch Database Info | 10 | |
| DBK | Orcad Schematic Capture Backup | 21 | |
| DBO | DB/TextWorks Database Directory | 12 | |
| DBR | DB/TextWorks Database | 6 | |
| DBS | DB/TextWorks Database Textbase Structure file | 8 | |
| DBX | Outlook Express E-mail folder | 29 | Joystick |
| DC3 | Diamond Caves 3 levels group | 19 | |
| DC5 | DataCAD Drawing | 13 | |
| DCA | DCA Archiver compressed archive | 3 | |
| DCD | DesignCAD drawing | 12 | |
| DCE | DriveCam video | 12 | |
| DCF | D-LIB bytecode (generic) | 184 | |
| DCF | D-LIB bytecode (v2.0) | 180 | |
| DCF | DRM Content Format - Separate delivery file (generic) | 9 | |
| DCM | DICOM medical imaging bitmap | 193 | |
| DCR | Director - Shockwave movie | 8 | |
| DCU | Borland Delphi 6 Library | 594 | Alex Paven |
| DCU | Delphi 7 Compiled Unit | 26 | |
| DCW | Draft Choice for Windows drawing | 2 | |
| DCX | Graphics Multipage PCX bitmap | 11 | |
| DD | AccWare Data Dictionary | 2 | |
| DDD | ColdFusion Verity engine fields definition | 10 | |
| DDIF | DIGITAL Document Interchange Format | 3 | |
| DDP | Delphi Diagram Portfolio | 4 | |
| DDS | DirectX DirectDraw Surface | 7 | |
| DDY | ASHRAE Design Conditions Design Day data | 34 | |
| DEB | Debian Linux Package | 29 | |
| DEM | Half-Life 2 Demo | 4 | |
| DEM | Half-Life Demo | 10 | |
| DEM | Vista Digital Elevation Map | 2 | |
| DEM | iGO Digital Elevation Map | 6 | |
| DEPOT | HP-UX Software Distributor catalog depot | 22 | |
| DER | DER encoded X509 Certificate | 6 | |
| DES | GRAFIT layout | 11 | |
| DES | Pro/Desktop Design | 91 | |
| DESKTOP | KDE/GNOME desktop entry | 8 | |
| DEV | Bloodshed Dev-C++ project | 11 | |
| DEX | Dalvik Dex class | 5 | |
| DF1 | Omnis Studio database | 18 | |
| DFM | Borland Delphi - C++ Builder Form | 21 | |
| DFONT | Macintosh OS X Data Fork Font | 7 | |
| DFS | Area 51 game data | 2 | |
| DFT | Solid Edge Draft Document | 46 | |
| DFW | Derive for Windows (generic) | 32 | |
| DFW | Derive for Windows (v5) | 20 | Filippo Menolascina |
| DFW | Derive for Windows (v6) | 4 | |
| DGC | DGCA Digital G Codec Archiver | 4 | |
| DGN | Bentley MicroStation CAD drawing | 59 | |
| DGN | Bentley MicroStation CAD drawing (alternate) | 30 | |
| DGR | PhoneTools Internal Graphic Format | 7 | |
| DGS | Dagesh document | 18 | |
| DH | David Hanney Music | 16 | |
| DIA | Dia drawing (uncompressed) | 11 | |
| DIF | Data Interchange Format - Table | 2 | |
| DIG | Sound Designer I (Mac) audio | 13 | |
| DII | Summation Document Image Information Load File | 10 | |
| DIN/BIN | DESI-III drawing | 7 | |
| DJR | Macromedia Director Java Resource - Video | 4 | |
| DJV | DjVu file | 11 | |
| DJX | Fluid Entertainment Dundjinni - included Art | 67 | |
| DLC | DLC - DIGILINEAR compressed archive | 4 | |
| DLDI | Dynamically Linked Device Interface | 40 | |
| DLL | ATI The Compressonator plugin | 22 | |
| DLL | DLL PowerBASIC PB/DLL 6.x | 9 | |
| DLL | DLL PowerBASIC/Win 7.x | 23 | |
| DLL | DLL PowerBASIC/Win generic | 24 | |
| DLL | DeliPlayer genie | 9 | |
| DLL | DeliPlayer player plugin | 37 | |
| DLL | Generic .NET DLL/Assembly | 18 | |
| DLL | JAJC plugin | 4 | |
| DLL | JellyFish Pro Editor PlugIn DLL | 27 | |
| DLL | Miranda IM plugin | 40 | |
| DLL | NT5 Migrate DLL | 28 | |
| DLL | OllyDbg plugin | 6 | |
| DLL | Omnis Web Client Component | 23 | |
| DLL | Pixia filter plugin | 13 | |
| DLL | Psycle plugin | 49 | |
| DLL | Quintessential Player input plugin | 10 | |
| DLL | SpamPal plugin | 8 | |
| DLL | VD - Visual Designer add-in | 5 | |
| DLL | Win32 Dynamic Link Library (generic) | 43 | |
| DLL | Win32 Dynamic Link Library (generic) | 178 | |
| DLL | Win32 Dynamic Link Library - Borland C/C++ | 7 | |
| DLL | WinAmp 2.x Input plugin | 43 | |
| DLL | WinAmp 2.x Output plugin | 26 | |
| DLL | Winconv conversion module | 35 | |
| DLL | foobar 2000 Diskwriter output component | 8 | |
| DLL | foobar 2000 Input component | 9 | |
| DLL | foobar 2000 generic component | 23 | |
| DLS | DownLoadable Sound bank | 8 | |
| DMF | Delusion Digital Music File song/module | 2 | |
| DMF | DemoForge demo | 13 | |
| DMF | Digitals/Delta Map file | 8 | |
| DMF | Xtracker DMF module/song | 3 | |
| DMG | Disk Image (Macintosh) | 11 | |
| DMP | Windows 64bit Memory Dump | 2 | |
| DMP | Windows memory dump | 4 | |
| DMP/MDMP | Windows Minidump | 154 | |
| DMS | SDS Software DISK-Masher compressed disk image | 3 | |
| DMSD | VideoWave DVD Project | 19 | |
| DMT | Street Atlas Transfer file | 7 | |
| DMU | DigitalMugician song-module | 18 | |
| DMZ | DMesh 3d model | 48 | |
| DNL | DNL eBook / eCatalog / eCard / eBrochure | 9 | |
| DNP | Eudemons Online game data | 4 | |
| DNP | NeatImage 2.2 Free Ed. Profile File | 11 | Roberto 'rbnet' Bolli |
| DOC | DeskMate document | 4 | |
| DOC | Microsoft WinWord 2.0 | 12 | |
| DOC | Microsoft Word document | 570 | |
| DOC | Microsoft Word document (MacBinary) | 6 | |
| DOC | Microsoft Word document (old ver.) | 59 | |
| DOC | PerfectOffice document | 26 | |
| DOCX | Word Microsoft Office Open XML Format document | 8 | |
| DOCZIP | dockzip format | 6 | |
| DOF | Delphi Options File | 17 | |
| DPC | Twisted Metal 2 (PC) texture | 2 | |
| DPD | Ovation Pro document | 4 | |
| DPG | Nintendo DS MPEG video | 2 | |
| DPL | Borland component | 7 | |
| DPR | Delphi project source | 14 | |
| DPS | DivX Skin | 39 | |
| DPX | Digital Moving Picture Exchange bitmap | 19 | |
| DR | Open Digital Rights Language | 9 | |
| DREAM | Stardock's DeskScapes animated wallpaper | 23 | Esteban Santana Santana |
| DRL | Drazlace IFLI (C64) bitmap | 32 | |
| DRO | D-Robots robot | 21 | |
| DRW | CADS Planner drawing | 14 | |
| DRW | GE PSLF drawing | 8 | |
| DRW | MacDraw drawing | 11 | |
| DRW | Pro/ENGINEER drawing file | 10 | |
| DRW | Windows Draw drawing | 3 | |
| DRZ | Drazpaint (C64) bitmap | 8 | |
| DS2RES | Dungeon Siege 2 data | 2 | |
| DS4 | Micrografx Designer Graphics (ver 4) | 12 | |
| DSE | WhatsUp Gold Virtual Device | 12 | |
| DSK | Extended CPCEMU style disk image | 25 | |
| DSK | Generic PC disk image | 5 | |
| DSK | MSX DOS Disk Image | 6 | |
| DSK | Standard CPCEMU style disk image | 21 | |
| DSL | CriticalSeeker Picture Packet | 2 | |
| DSM | Digital Sound Module tracker format | 4 | |
| DSN | ISIS Schematic file | 8 | |
| DSN | Microsoft ODBC Data Source | 21 | flarn2006 |
| DSN | OrCAD Schematic Capture Schematic file | 27 | |
| DSP | MS Developer Studio Project | 12 | |
| DSPACKAGE | Desktop Sidebar skin | 16 | |
| DSPACKAGE | Desktop Sidebar slideshow | 12 | |
| DSR | Visual Basic Active Designer file | 10 | |
| DSS | Digital Speech Standard audio (generic) | 10 | |
| DSS | Digital Speech Standard audio (v2) | 4 | |
| DSS | Digital Speech Standard audio (v3) | 9 | |
| DST | DST compressed file | 3 | |
| DST | Embroidery file (generic) | 18 | |
| DST | Tajima stitch image | 12 | |
| DSY | Daisy Container File | 2 | |
| DS_STORE | Mac OS X folder information | 19 | |
| DTD | TechSoft 2D Design drawing | 8 | |
| DTG | Desktop Guitarist music score | 6 | |
| DUC | Action Replay Saved gamestate | 4 | |
| DUR | DURILCA compressed file | 16 | |
| DVB | AutoCAD VBA macro | 51 | |
| DVF/MSV | Sony Compressed Voice File | 15 | |
| DVG | GraphicWorks Vector Drawing | 6 | |
| DVI | Device Independent Document (TeX/LaTeX compiled) | 5 | |
| DVM | DVM video/movie | 2 | |
| DVR | DVR-Studio stream | 4 | |
| DWA | Project Dogwaffle animation (generic) | 4 | |
| DWA | Project Dogwaffle animation (type 1) | 4 | |
| DWC | Enter a useful file type description | 2 | |
| DWD | DiamondWare Digitized audio | 17 | |
| DWF | Autodesk Design Web Format | 8 | |
| DWG | AutoCAD Drawing (generic) | 43 | |
| DWG | AutoCAD R10 drawing | 4 | Stefano Gaggioli |
| DWG | AutoCAD R11/R12 drawing | 4 | Stefano Gaggioli |
| DWG | AutoCAD R13 drawing | 108 | Stefano Gaggioli |
| DWG | AutoCAD R13 drawing (subtype 10) | 108 | Stefano Gaggioli |
| DWG | AutoCAD R13 drawing (subtype 11) | 108 | Stefano Gaggioli |
| DWG | AutoCAD R13 drawing (subtype 12) | 108 | Stefano Gaggioli |
| DWG | AutoCAD R14 drawing (subtype 13) | 108 | Stefano Gaggioli |
| DWG | AutoCAD R14 drawing (subtype 14) | 108 | Stefano Gaggioli |
| DWG | AutoCAD R2.5 drawing | 4 | Stefano Gaggioli |
| DWG | AutoCAD R2.6 drawing | 4 | Stefano Gaggioli |
| DWG | AutoCAD R2000 drawing | 108 | Stefano Gaggioli |
| DWG | AutoCAD R2004 drawing | 108 | Stefano Gaggioli |
| DWG | AutoCAD R2007 drawing | 2 | |
| DWG | AutoCAD R9 drawing | 4 | Stefano Gaggioli |
| DWG/PCB/SCH | CIRCAD data (v3.x) | 9 | |
| DWG/PCB/SCH | CIRCAD data (v4.x) | 23 | |
| DWG/PCB/SCH | CIRCAD data (v5.x) | 16 | |
| DWI | Dance With Intensity song | 18 | |
| DWI | Dependency Walker Image | 10 | |
| DWN | Dawn file format | 2 | |
| DWP | Darwin Pond File | 9 | .Cryorb |
| DWP | SharePoint Portal Server Dashboard Web Part | 4 | |
| DWP | SharePoint Portal Server Dashboard Web Part (Unicode) | 3 | |
| DWZ | Ulead DVD MovieFactory project | 14 | |
| DXB | AutoCAD Drawing Exchange Binary Format (v1.0) | 3 | |
| DXF | AutoCAD Drawing Interchange Format | 21 | Piet de Visser |
| DXM | DXM music | 10 | |
| DXPACK | DesktopX Object Package | 3 | |
| DXR | Macromedia Director Protected Movie (MAC) | 29 | |
| DXR | Macromedia Director Protected Movie (PC) | 16 | |
| DXTHEME | DesktopX Theme | 5 | |
| DYL | Psion Library | 19 | |
| DZ | Darius Zendeh Music | 28 | |
| DZ | Dzip compressed archive | 3 | |
