Home : Browse : D File Extensions
D File Extensions
| File Extension | File Type | Popularity |
|---|---|---|
| .DAT | Data File | 186 |
| .DB | Database File | 205 |
| .DLL | Dynamic Link Library | 174 |
| .DMG | Apple Disk Image | 172 |
| .DOC | Microsoft Word Document | 189 |
| .DRV | Device Driver | 231 |
| .DNG | Digital Negative Image File | 218 |
| .DWG | AutoCAD Drawing Database File | 245 |
| .DXF | Drawing Exchange Format File | 239 |
| .DBF | Database File | 228 |
| .DEM | Video Game Demo File | 174 |
| .DDS | DirectDraw Surface | 191 |
| .DTD | Document Type Definition File | 211 |
| .DMP | Windows Memory Dump | 180 |
| .DOCX | Microsoft Word Open XML Document | 197 |
| .DEB | Debian Software Package | 181 |
| .DCR | Shockwave Media File | 197 |
| .DESKTHEMEPACK | Windows 8 Desktop Theme Pack File | 176 |
| .DBX | Outlook Express E-mail Folder | 242 |
| .DSS | Digital Speech Standard File | 256 |
| .DOT | Word Document Template | 250 |
| .DWD | DavkaWriter File | 320 |
| .DASH | MPEG-DASH Video File | 258 |
| .DIB | Device Independent Bitmap File | 180 |
| .DRW | Drawing File | 254 |
| .DB.CRYPT8 | WhatsApp Encrypted Database File | 210 |
| .DPX | Digital Picture Exchange File | 307 |
| .DWT | Dreamweaver Web Page Template | 181 |
| .DVR-MS | Microsoft Digital Video Recording | 260 |
| .DGN | MicroStation Design File | 233 |
| .DIVX | DivX-Encoded Movie File | 271 |
| .DCM | DICOM Image | 290 |
| .DCF | DRM Content Format File | 233 |
| .DPR | Delphi Project | 187 |
| .DIF | Data Interchange Format | 175 |
| .DB | Windows Thumbnail Cache | 198 |
| .DOTX | Word Open XML Document Template | 185 |
| .DB.CRYPT12 | WhatsApp Encrypted Database File | 202 |
| .DAT | Exchange E-mail Attachment | 200 |
| .DAE | Digital Asset Exchange File | 179 |
| .DBB | Skype User Information File | 389 |
| .DWF | Design Web Format File | 221 |
| .DEX | Dalvik Executable File | 194 |
| .DSB | Wondershare DVD Slideshow Builder Project | 278 |
| .DT1 | DTED Level 1 File | 220 |
| .DT2 | Windows Live Messenger Emoticon Image File | 350 |
| .DREAM | Dream Animated Wallpaper File | 248 |
| .DUF | DAZ User File | 160 |
| .DSN | Database Source Name File | 238 |
| .DBA | Palm Datebook Backup File | 400 |
| .DBK | Sony Ericsson Mobile Phone Backup File | 232 |
| .DMSM | VideoWave Movie Project File | 229 |
| .DMSP | PhotoSuite Project File | 350 |
| .DMSE | Sound Editor Project File | 200 |
| .DMSA | Music Disc Creator Project File | 200 |
| .DVDMEDIA | RipIt DVD Package | 300 |
| .DAT | Minecraft Data File | 188 |
| .DXE | AutoCAD Data Extraction Template | 271 |
| .DST | AutoCAD Sheet Set File | 204 |
| .DCP | Adobe DNG Camera Profile | 225 |
| .DZM | DirectorZone Menu Template | 211 |
| .DZP | DirectorZone Particle Effect File | 247 |
| .DMGPART | Mac OS X Disk Image Part | 160 |
| .DEK | Magic: The Gathering Deck File | 150 |
| .DLX | DIALux Document | 311 |
| .DISC | Toast Document | 240 |
| .DRA | OrCAD Drawing File | 367 |
| .DTX | Documented LaTeX File | 235 |
| .DCPROJ | Dashcode Project | 200 |
| .DAZ | DAZ Studio 3D Scene | 257 |
| .DSF | DAZ Studio Asset File | 243 |
| .DPROJ | Delphi Project | 200 |
| .DR5 | Dramatica Story Expert Project | 250 |
| .DSL | Lingvo Dictionary File | 233 |
| .DSK | Disk Image | 182 |
| .DV | Digital Video File | 262 |
| .DIP | DipTrace Printed Circuit Board File | 280 |
| .DIC | Dictionary File | 268 |
| .DB1 | Tekla Structures Model File | 180 |
| .DFONT | Mac OS X Data Fork Font | 283 |
| .DXB | Drawing Exchange Binary | 350 |
| .DCR | Kodak RAW Image File | 216 |
| .DIR | Adobe Director Movie | 211 |
| .DXR | Protected Macromedia Director Movie | 237 |
| .DBT | Database Text File | 325 |
| .DCS | Desktop Color Separation File | 300 |
| .DLG | Digital Line Graph | 380 |
| .DMS | Disk Masher Image | 331 |
| .DVI | Device Independent Format File | 243 |
| .DDL | Data Definition Language File | 180 |
| .DO | Java Servlet | 244 |
| .DGSL | Visual Shader Graph File | 200 |
| .DUN | Dungeon Defenders Saved Game File | 300 |
| .DJVU | DjVu Image | 215 |
| .DIZ | Description in Zip File | 202 |
| .DST | Tajima Embroidery Format | 266 |
| .DAT | Porteus Save Container File | 193 |
| .DSP | Visual C++ 6 Project | 325 |
| .DSW | Visual C++ 6 Workspace File | 280 |
| .DSG | Doom Saved Game | 233 |
| .DART | Dart Source Code File | 314 |
| .DSC | Nikon Disk Identification File | 284 |
| .DOWNLOAD | Partially Downloaded File | 192 |
| .DMX | Source Filmmaker Project File | 192 |
| .DAA | PowerISO Direct-Access-Archive | 215 |
| .DVF | Sony Digital Voice File | 275 |
| .DCE | DriveCam Video File | 373 |
| .DESKLINK | Desktop Shortcut | 193 |
| .DBC | FoxPro Database | 200 |
| .DBF | FoxPro Table | 256 |
| .DBG | Visual FoxPro Debugger Configuration File | 150 |
| .DCX | FoxPro Database Index | 325 |
| .DNE | Netica Text File | 360 |
| .DFT | Solid Edge Draft Document | 293 |
| .DCT | Dictionary File | 177 |
| .DCX | FAXserve Fax Document | 333 |
| .DCTMP | DC++ Partially Downloaded File | 320 |
| .DII | Summation Batch Load File | 200 |
| .DEF | Module-Definition File | 203 |
| .DOC | WordPad Document | 222 |
| .DM | DRM Delivery Message | 197 |
| .DR | DRM Rights Object | 250 |
| .DRC | DRM Rights Object | 240 |
| .DCU | Delphi Compiled Unit | 300 |
| .DFM | Delphi Form | 371 |
| .DCP | Delphi Compiled Package | 180 |
| .DPK | Delphi Package | 325 |
| .DPL | Delphi Package Library | 275 |
| .D64 | Commodore 64 Disk Image | 300 |
| .DCM | DCM Audio Module | 300 |
| .DEWF | SoundEdit Recorded Instrument | 333 |
| .DF2 | Defractor 2 Instrument | 400 |
| .DFC | Defractor Instrument | 240 |
| .DIG | Sound Designer Audio File | 271 |
| .DLS | Downloadable Sounds File | 290 |
| .DMF | Delusion Digital Music File | 400 |
| .DSF | Delusion Digital Sound File | 215 |
| .DSM | Digital Sound Module | 200 |
| .DTM | DigiTrakker Module | 200 |
| .DWD | DiamondWare Digital Audio File | 380 |
| .DCT | Dictation Audio File | 233 |
| .DOCM | Word Open XML Macro-Enabled Document | 237 |
| .DOTM | Word Open XML Macro-Enabled Document Template | 170 |
| .DAR | DAR Disk Archive | 200 |
| .DGC | DGCA File Archive | 300 |
| .DIST | Mac OS X Distribution Script | 367 |
| .DIM | Active@ Raw Disk Image Backup File | 250 |
| .DOB | Visual Basic UserDocument | 280 |
| .DOX | Visual Basic Binary UserDocument | 210 |
| .DS_STORE | Mac OS X Folder Settings File | 211 |
| .DC4 | ViaThinkSoft (De)Coder 4 File | 275 |
| .DRW | DESIGNER Drawing | 234 |
| .DF1 | Omnis Native Datafile | 250 |
| .DMPR | Direct Mail Project File | 175 |
| .DLIS | DLIS Well Log Data File | 208 |
| .DP1 | DataPower Database File | 220 |
| .DPD | Ovation Pro File | 275 |
| .DES | Corel Designer File | 219 |
| .D2V | DVD2AVI File | 233 |
| .DEC | Declaration File | 300 |
| .DHTML | Dynamic HTML file | 157 |
| .DAT | VCD Video File | 229 |
| .DPG | Nintendo DS Movie File | 308 |
| .DGB | FlashCAD Drawing Database | 300 |
| .DRM | Cubase Drum Map File | 400 |
| .DBV | Database Variable Field | 300 |
| .DOWNLOADHOST | MSN Download Settings File | 208 |
| .DDC | DivX Descriptor File | 350 |
| .DISKDEFINES | Linux LiveCD Information File | 253 |
| .DDCX | DivX Descriptor 2 File | 400 |
| .DISCO | DISCO Discovery Document | 233 |
| .DISCOMAP | DISCO Discovery Output File | 320 |
| .DAM | DeltaMaster Analysis Model | 200 |
| .DAS | DeltaMaster Analysis Session | 300 |
| .DVD | CloneCD DVD Information File | 196 |
| .DM2 | Toad Data Modeler 2 File | 200 |
| .DM2 | Quake 2 Demo File | 300 |
| .D | D Source Code File | 218 |
| .DPR | Digital InterPlot File | 217 |
| .DPP | DrawPlus Drawing File | 243 |
| .DLL | DLL Dynamic Web Page | 180 |
| .DESKTOP | Desktop Entry File | 175 |
| .DFP | Fusion Plugin File | 300 |
| .D3V | Datel Video File | 300 |
| .DOL | GameCube Executable File | 310 |
| .DM_84 | Wolfenstein 2.06 Demo Movie File | 325 |
| .DTP | Publish-iT Document | 200 |
| .DVX | DivX Video File | 300 |
| .DAP | Access Data Access Page | 192 |
| .DVL | Dalim Virtual Library File | 417 |
| .DC | DesignCAD Design File | 312 |
| .DCD | DesignCAD Drawing | 310 |
| .DSY | Directory Synchronizer Project File | 325 |
| .DSZ | Orchida (OES) Embroidery File | 233 |
| .DVDPROJ | iDVD Project File | 200 |
| .DISK | Linux Virtual Hard Disk | 260 |
| .DWI | Dance With Intensity Song File | 400 |
| .DLM | Akamai Download Manager File | 241 |
| .DFF | RenderWare Model File | 171 |
| .DAX | PSP Compressed ISO Disc Image | 200 |
| .DAP | Download Accelerator Plus Partial Download | 230 |
| .DOCKZIP | ObjectDock File | 167 |
| .DLD | EdLog Compiled Program | 229 |
| .DTS | DTS Encoded Audio File | 280 |
| .DAL | Download Accelerator Plus URL List | 350 |
| .DAL | DVD-lab Project File | 325 |
| .DM_82 | Wolfenstein 1.00 Demo Movie File | 300 |
| .DM_83 | Wolfenstein 1.02 Demo Movie File | 300 |
| .DSTUDIO | DownloadStudio Incomplete Download | 300 |
| .DOLPHINVIEW | Dolphin Folder View Settings File | 200 |
| .DIRECTORY | KDE Folder View Properties File | 225 |
| .DRWDOT | SolidWorks Drawing Template | 280 |
| .DFX | Drafix CAD File | 267 |
| .DCM | DiskCatalogMaker Catalog File | 292 |
| .DCMD | DiskCatalogMaker Thumbnail-Enabled Catalog | 260 |
| .DBD | DemoShield Project | 300 |
| .DCF | Safetica Free Encrypted Archive | 267 |
| .DCO | Safetica Free Encrypted Virtual Disk Archive | 200 |
| .DRL | Gerber Drill Rack File | 200 |
| .DESIGN | Microsoft Expression Design Drawing | 320 |
| .DLC | Download Link Container File | 297 |
| .DPM | Pro Tools Plugin File | 278 |
| .DFPROJ | DVD Flick Project | 250 |
| .DCD | DisCryptor Encrypted Database | 325 |
| .DPN | Depiction Data File | 275 |
| .DFM | Midas ViewPoint Display Form | 275 |
| .DTR | DATroniC Data Recording | 243 |
| .DTW | Desktop Wallpaper | 333 |
| .DCF | Document Computation Format | 320 |
| .DWFX | Design Web Format XPS File | 200 |
| .DBO | DarkBASIC Object | 400 |
| .DRMZ | Drumlin Fully Secure Mobile PDF File | 167 |
| .DEVICEIDS | Device Identification FIle | 400 |
| .DT2 | DTED Level 2 File | 400 |
| .DT0 | DTED Level 0 File | 175 |
| .DNA | CA Backup and Migration Backup File | 300 |
| .DLR | finalRender Plugin | 200 |
| .DTSHD | DTS-HD Master Audio File | 250 |
| .DICT | Dictionary File | 167 |
| .DLT | DELTA Binary Dataset File | 250 |
| .DIFF | Patch File | 229 |
| .DVTCOLORTHEME | Xcode Color Theme File | 300 |
| .DBA | CryENGINE Animation Database File | 318 |
| .DNL | DNAML eBook File | 250 |
| .DCK | Resolume Deck File | 267 |
| .DEFT | Juice Grinder Defaults File | 300 |
| .DWDOC | DrawWell Document | 300 |
| .DB | Skype Chat History File | 219 |
| .DL | Zoo Tycoon 2 Data File | 218 |
| .DDF | Diamond Directive File | 318 |
| .DVB | AutoCAD VBA Project File | 320 |
| .DDT | Football Manager Keep Player Data File | 167 |
| .DUPEGURU | dupeGuru Duplicate File List | 300 |
| .DB3 | SQLite Database File | 213 |
| .DVO | Cook'n Cookbook File | 167 |
| .DOK | DesktopOK Icons Layout File | 200 |
| .DTSCONFIG | SSIS Package Configuration File | 400 |
| .DMSS | VideoWave SlideShow Project File | 350 |
| .DLV | CATIA 4 Export File | 300 |
| .DAR | DVD Architect Project | 300 |
| .DIAGSESSION | Diagnostics Session File | 200 |
| .DXP | CDBurnerXP Data Compilation File | 360 |
| .DLTEMP | UC Browser Temporary Download File | 269 |
| .DDOC | DigiDoc Signature File | 233 |
| .DSF | Dramatica Pro Project | 267 |
| .DRG | I-Doser Audio Drug File | 300 |
| .DE | DrawExpress Diagram File | 233 |
| .DGK | Delcam 3D Model File | 287 |
| .DCOVER | Disc Cover File | 200 |
| .DWS | Dyalog Workspace File | 200 |
| .DEC | Magic: The Gathering Online Deck File | 400 |
| .DMC | Datamartist Data Canvas File | 216 |
| .DEPROJ | Disketch Project File | 250 |
| .DWLIBRARY | Paperless Document Library | 250 |
| .DBPROJ | Visual Studio Database Project File | 233 |
| .DBML | Visual Studio OR Design File | 233 |
| .DV-AVI | Microsoft DV-AVI Video File | 280 |
| .DAZIP | Dragon Age: Origins Game File | 171 |
| .DSC | Debian Source Control File | 300 |
| .DLU | 3ds Max Utility Plug-in File | 267 |
| .DBX | AutoCAD Database Extension File | 333 |
| .DSD | AutoCAD Drawing Set Description File | 167 |
| .DWS | AutoCAD Drawing Standards File | 214 |
| .DCL | AutoCAD Dialog Definition File | 300 |
| .DWT | AutoCAD Drawing Template | 191 |
| .DXX | AutoCAD Drawing Interchange Attribute File | 300 |
| .DCPR | Adobe DNG Camera Profile Recipe File | 200 |
| .DWS | Adobe Dreamweaver Site Cache File | 350 |
| .DCST | Adobe InDesign Document Presets File | 200 |
| .DZT | DirectorZone Title File | 242 |
| .DIF | MAME CHD Diff File | 250 |
| .DIF | Torque Game Engine Model File | 300 |
| .DIV | DIVA-GIS Project File | 200 |
| .DIX | DIVA-GIS Export File | 200 |
| .DIAGCAB | Troubleshooting Pack Cabinet File | 227 |
| .DVDS | DVDStyler Project File | 233 |
| .DC2 | DesignCAD 2D ASCII Drawing | 200 |
| .DC3 | DesignCAD 3D ASCII Drawing | 167 |
| .DMO | Duke Nukem 3D Demo File | 400 |
| .DV2 | Divinity 2 Data File | 233 |
| .DIA | Dia Diagram File | 275 |
| .DER | DER Certificate File | 264 |
| .DEK | Yugioh Virtual Desktop Deck File | 175 |
| .DEK | LackeyCCG Card Deck File | 233 |
| .DBS | SQLBase Database File | 208 |
| .DRA | Nuance Dragon Voice Recording File | 243 |
| .DAT | Windows Registry Hive File | 198 |
| .DMC | Mimic Configuration File | 300 |
| .DSGM | DS Game Maker Project | 250 |
| .DVC | Dragon Voice Command File | 200 |
| .DBR | DeepBurner Disc Project | 200 |
| .DCMF | DiskCatalogMaker Catalog | 400 |
| .DL_ | Compressed DLL File | 200 |
| .DTAPART | DownThemAll! Partially Downloaded File | 180 |
| .DTSX | DTS Settings File | 214 |
| .DIT | Active Directory Information Tree File | 240 |
| .DXL | Domino XML Language File | 225 |
| .DRA | Dolphin PartMaster Drawing File | 300 |
| .DRF | VIZ Render File | 280 |
| .DITA | DITA Document | 200 |
| .DITAMAP | DITA Topic Map File | 200 |
| .DITAVAL | DITA Conditions File | 300 |
| .DNF | Duke Nukem Forever Map File | 283 |
| .DNS | Duke Nukem Forever Save File | 300 |
| .DHS | HyperSnap Drawing | 300 |
| .DPA | DrawPlus Animation File | 217 |
| .DUCK | Cyberduck Bookmark | 220 |
| .DRPM | Delta RPM File | 200 |
| .DGML | Visual Studio Directed Graph Document | 167 |
| .DVR | Microsoft Recorded TV Show | 248 |
| .DCB | Concordance Database File | 233 |
| .DBA | DarkBASIC Source Code File | 400 |
| .DBPRO | DarkBASIC Professional Project File | 400 |
| .DB | Mobile Device Database File | 189 |
| .DRAWING | Artboard Drawing | 340 |
| .DMSD | Roxio MyDVD Project | 286 |
| .DMSD3D | Roxio MyDVD 3D Project | 400 |
| .DPS | Kingsoft Presentation File | 239 |
| .DSN | OrCAD Design File | 228 |
| .DS2 | Olympus DSS Pro Audio File | 300 |
| .DASCHEMA | RemObjects Data Abstract Schema File | 200 |
| .DACONNECTIONS | RemObjects Data Abstract Connections File | 200 |
| .DM1 | ER/Studio Data Model File | 300 |
| .DUC | Action Replay Max DS Save File | 317 |
| .DMD | SQL Developer Data Modeler File | 211 |
| .DMT | DeLorme Transfer File | 300 |
| .DMI | BYOND Dream Maker Icon File | 380 |
| .DMM | iMindQ Mind Map File | 200 |
| .DMMX | iMindQ XML Map Bundle | 167 |
| .DMB | BYOND Game Executable | 233 |
| .DSB | Dell DataSafe Backup File | 162 |
| .DS | DAZ Studio 1/2 Script | 204 |
| .DOWNLOADING | Pando Incomplete Download File | 168 |
| .DSA | DAZ Studio 3+ Script | 240 |
| .DSB | DAZ Studio Binary Script | 200 |
| .DSI | DAZ Studio Layered Image Set | 333 |
| .DAT_NEW | Minecraft World Level File | 192 |
| .DACPAC | SQL Server Data Tier Application Package | 300 |
| .DCR | Digital Court Recorder Video File | 210 |
| .DCR | Liberty Video Recording File | 212 |
| .DASH | Dashlane Profile | 269 |
| .DM3 | DigitalMicrograph Image | 333 |
| .DCUIL | Delphi .NET Compiled Unit File | 300 |
| .DPKW | Delphi Package | 200 |
| .DNA | SnapGene DNA File | 192 |
| .DPB | DataPilot Backup File | 233 |
| .DEVICEINFO | Device Record | 250 |
| .DMR | BrainVoyager Diffusion Weighted Project File | 200 |
| .DSK | Borland Project Desktop File | 200 |
| .DIME | Direct Internet Message Encapsulation File | 275 |
| .DD | DiskDoubler Archive | 240 |
| .DEK | Memorize-It Flashcard Deck | 400 |
| .DSS | DCC Active Designer File | 340 |
| .DKT | DiGiTIAL THUNDER Drum Kit File | 200 |
| .DEV | Windows Device Driver File | 220 |
| .DEX | DEXIS Digital X-ray File | 280 |
| .DES | Pro/DESKTOP CAD File | 203 |
| .DDP | Delphi Diagram Portfolio File | 250 |
| .DA0 | Windows Registry Backup File | 200 |
| .DECRYPT | Decrypted Microsoft ESD File | 300 |
| .DLO | 3ds Max Plug-in | 200 |
| .DT | Drum Station Machine State File | 289 |
| .DQY | Excel Query File | 350 |
| .DEVELVE | Develve Data File | 450 |
| .DRM | Deus Ex Data File | 267 |
| .DSK | Simple IDs Database | 312 |
| .DCT | FoxPro Database Memo | 400 |
| .DMS | Dream Maker Script | 314 |
| .DDRW | ClarisDraw Drawing | 400 |
| .DEF | SmartWare II Data File | 208 |
| .DGT | DST Thumbnail File | 245 |
| .DIF | Digital Interface Format | 433 |
| .DAO | Disk at Once CD/DVD Image | 433 |
| .DFF | DSD Audio File | 201 |
| .DRMX | Drumlin Fully Secure PDF File | 250 |
| .DBM | ColdFusion Server File | 275 |
| .DCL | DumpSec Report File | 400 |
| .DGS | Dagesh Pro Document | 367 |
| .DMB | Digital Multimedia Broadcasting File | 250 |
| .DAF | Digital Anchor File | 329 |
| .D88 | Toshiba Pasopia 7 Disk File | 400 |
| .DWC | Emulex DWC Firmware Update File | 400 |
| .DXP | Dexpot Profile File | 400 |
| .DSB | Orchida Embroidery File | 267 |
| .DMO | Movienizer Database File | 400 |
| .DB | X-Ray Engine Database | 222 |
| .DET | Sage ACT! 5 Email Message | 320 |
| .DSYM | Xcode Debug Symbols File | 283 |
| .DSKIN | DockX Skin | 400 |
| .DAV | DVR365 Video File | 242 |
| .DSD | Diet Studio Data File | 400 |
| .DML | DynaScript File | 200 |
| .DSV | DeSmuME Save File | 157 |
| .DB-SHM | SQLite Database Shared Memory File | 287 |
| .DMI | Statistica Node Interface Configuration File | 400 |
| .DLX | Sony VDU Video File | 400 |
| .DB-WAL | SQLite Database Write-Ahead Log File | 223 |
| .DWL | TurboCAD Drawing Lock File | 244 |
| .DV4 | Bosch Security Systems CCTV Video File | 238 |
| .DMF | Geosystem Digitals Map File | 279 |
| .DFG | Data Flask Grid File | 460 |
| .DAT | Inno Setup Uninstaller Data File | 189 |
| .DCT | AutoCAD Dictionary File | 400 |
| .DGS | 3D Screen Creator Scene File | 375 |
| .DSX | Diet Studio XML File | 400 |
| .DAT | SimCity 4 Game Data File | 209 |
| .DSG | Control Studio Document | 433 |
| .DMC | DPCM Sample File | 333 |
| .DA2 | DeepAnalysis Save File | 450 |
| .DA2 | Ad-Aware License File | 400 |
| .DMSM3D | VideoWave 3D Movie Project File | 240 |
| .DCPF | Disc Copier Project File | 400 |
| .D3D | Game Maker 3D File | 257 |
| .DIAGCFG | Troubleshooting Pack Configuration File | 400 |
| .DIAGPKG | Troubleshooting Pack File | 450 |
| .DS | LMMS DrumSynth File | 231 |
| .DC2 | Kodak Photo-Enhancer File | 400 |
| .DMO | Cube 2: Sauerbraten Demo File | 200 |
| .DBGSYM | Debug Symbols File | 250 |
| .DIA | Do It Again Task File | 240 |
| .DDT | Age of Mythology Textures File | 325 |
| .DBS | GAMBIT Mesh File | 333 |
| .DEP | Windows Dependency File | 278 |
| .DHCD | DHCD Computing Application Data File | 400 |
| .DSI | Double-Precision Spectral Image | 400 |
| .DIS | Oracle Discoverer Workbook | 325 |
| .DXL | Rational DOORS Script | 300 |
| .DXLS | DashXL Skin Set File | 400 |
| .DICOM | DICOM Image File | 342 |
| .DZ | Dzip File | 198 |
| .DZIP | The Witcher 2 Game Archive | 285 |
| .DFS | BrainSuite Surface File | 333 |
| .DRF | Dynojet Run File | 400 |
| .DPX | DrawPlus Template | 467 |
| .DRAWIT | DrawIt Drawing | 250 |
| .DSC | Celestia Deep Space Catalog File | 460 |
| .DEVELOPERPROFILE | Xcode Developer Profile | 433 |
| .DAM | DAME Project | 400 |
| .DAP | Diet Analysis Profile | 400 |
| .D00 | VirtualDrive Disc Image Part File | 210 |
| .D01 | VirtualDrive Disc Image Part 2 File | 400 |
| .DPB | DVD Profiler Backup File | 400 |
| .DDB | Digidesign Database | 217 |
| .DDB | Command & Conquer: Renegade Data File | 400 |
| .DAT_MCR | Minecraft Level.dat Backup File | 163 |
| .DC1 | DevCad Document | 250 |
| .DC2 | DevCad Cam Pro Document | 450 |
| .DBQ | AutoCAD Query Set | 367 |
| .DFK | Dark Flow Project File | 475 |
| .DPT | Kingsoft Presentation Template | 257 |
| .DDD | GLBasic 3D Data File | 310 |
| .DB | QQ Account Database File | 216 |
| .DESC | Battlefield 2 Map Description File | 200 |
| .DABRIEFCASE | RemObjects Data Abstract File Briefcase | 200 |
| .DACONFIG | RemObjects Data Abstract Configuration File | 450 |
| .DADIAGRAMS | RemObjects Data Abstract Data Diagrams File | 450 |
| .DAD | RemObjects Data Abstract Driver File | 380 |
| .DNA | GenePool DNA File | 400 |
| .D3DBSP | Call of Duty Map File | 159 |
| .DSE | DAZ Studio Encrypted Script | 300 |
| .DSX | DAZ Studio XML File | 243 |
| .DSO | DAZ Studio Object File | 400 |
| .DSD | DAZ Studio Object Morph File | 400 |
| .DSV | DAZ Studio UV Mapping File | 200 |
| .DBM | DAZ Brick Material File | 300 |
| .DBC | DAZ Brick Camera File | 450 |
| .DBL | DAZ Brick Light File | 417 |
| .DOCSET | Doxygen Document Set File | 375 |
| .DPF | Dargon Package | 233 |
| .DMX-INFO | DriverMax Driver Information File | 400 |
| .DISABLED | Spybot - Search & Destroy Disabled File | 333 |
| .DUN | Dial Up Network File | 400 |
| .DM3 | Quake 3 Demo File | 400 |
| .DM_68 | Quake 3 Demo File | 250 |
| .DRES | Delphi Compiled Resource File | 333 |
| .DPV | Siemens NX Drafting Standard File | 340 |
| .DJR | Ringtone Media Studio DJ Ringtone Project | 400 |
| .DFU | iOS DFU File | 256 |
| .DIVA | Project DIVA Song File | 137 |
| .DRSCAN | Data Rescue Scans File | 300 |
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