D File Extensions
Browse file types with extensions beginning with D.
| Extension | File Type | Popularity |
|---|---|---|
| .D | D Source Code File | 3.8 |
| .D.TS | TypeScript Declaration File | 2.0 |
| .D00 | VirtualDrive Disc Image Part File | 3.9 |
| .D01 | VirtualDrive Disc Image Part 2 File | 4.0 |
| .D2S | Diablo II Save File | 3.4 |
| .D2V | DVD2AVI File | 3.4 |
| .D3D | Game Maker 3D File | 3.4 |
| .D3DBSP | Call of Duty Map File | 4.3 |
| .D3V | Datel Video File | 3.7 |
| .D64 | Commodore 64 1541 Disk Image | 4.0 |
| .D88 | Toshiba Pasopia 7 Disk File | 1.8 |
| .DA0 | Windows Registry Backup File | 3.8 |
| .DA2 | DeepAnalysis eBay Sales Data | 3.0 |
| .DA2 | Adaware License File | 2.0 |
| .DAA | PowerISO Direct-Access-Archive | 3.9 |
| .DABRIEFCASE | RemObjects Data Abstract File Briefcase | 3.5 |
| .DACONFIG | RemObjects Data Abstract Configuration File | 1.5 |
| .DACONNECTIONS | RemObjects Data Abstract Connections File | 4.0 |
| .DACPAC | SQL Server Data Tier Application Package | 4.0 |
| .DAD | RemObjects Data Abstract Driver File | 3.0 |
| .DADIAGRAMS | RemObjects Data Abstract Data Diagrams File | 2.5 |
| .DAE | Digital Asset Exchange File | 4.0 |
| .DAF | Digital Anchor File | 2.8 |
| .DAL | Download Accelerator Plus URL List | 3.3 |
| .DAL | DVD-lab Project File | 2.8 |
| .DAM | DeltaMaster Analysis Model | 3.1 |
| .DAM | DAME Project | 2.0 |
| .DAO | Disk-At-Once CD or DVD Image | 1.9 |
| .DAP | Access Data Access Page | 3.8 |
| .DAP | Download Accelerator Plus Partial Download | 3.5 |
| .DAP | Diet Analysis Profile | 2.0 |
| .DAR | DVD Architect Project | 3.3 |
| .DAR | DAR Disk Archive | 3.8 |
| .DART | Dart Source Code File | 3.4 |
| .DAS | DeltaMaster Analysis Session | 3.0 |
| .DASCHEMA | RemObjects Data Abstract Schema File | 4.0 |
| .DASH | MPEG-DASH Video File | 3.5 |
| .DASH | Dashlane Profile | 3.5 |
| .DAT | Data File | 4.0 |
| .DAT | Exchange E-mail Attachment | 3.8 |
| .DAT | Minecraft Data File | 4.1 |
| .DAT | Clickteam Fusion Asset Package | 3.0 |
| .DAT | VCD Video File | 3.6 |
| .DAT | Geometry Dash Saved Data | 2.5 |
| .DAT | Porteus Save Container | 4.0 |
| .DAT | Prison Architect Asset Archive | 1.7 |
| .DAT | Windows Registry Hive File | 4.0 |
| .DATABASE_UUID | Android Stale Thumbnails Identifier | 3.5 |
| .DAT_MCR | Minecraft Level.dat Backup File | 4.3 |
| .DAT_NEW | Minecraft World Level File | 4.1 |
| .DAT_OLD | Minecraft Level.dat Backup File | 4.5 |
| .DAV | CCTV DVR Video | 3.5 |
| .DAX | PSP Compressed ISO Disc Image | 3.7 |
| .DAZ | DAZ Studio 3D Scene | 3.1 |
| .DAZIP | Dragon Age: Origins Game File | 4.1 |
| .DB | Database File | 3.9 |
| .DB | Windows Thumbnail Cache | 3.9 |
| .DB | Skype Chat and Call History | 3.5 |
| .DB | Mobile Device Database | 4.0 |
| .DB | X-Ray Engine Database | 3.6 |
| .DB | QQ Account Database | 3.8 |
| .DB.CRYPT12 | WhatsApp Encrypted Database File | 3.7 |
| .DB.CRYPT8 | WhatsApp Encrypted Database File | 3.7 |
| .DB1 | Tekla Structures Model File | 4.2 |
| .DB3 | SQLite Database File | 3.8 |
| .DBA | Palm Datebook Backup File | 2.0 |
| .DBA | CryENGINE Animation Database File | 2.8 |
| .DBA | DarkBASIC Source Code File | 2.0 |
| .DBB | Skype User Information File | 2.6 |
| .DBC | FoxPro Database | 4.0 |
| .DBC | DAZ Brick Camera File | 2.8 |
| .DBD | DemoShield Project | 2.8 |
| .DBF | Database File | 3.7 |
| .DBG | Visual FoxPro Debugger Configuration File | 4.0 |
| .DBGSYM | Debug Symbols File | 3.0 |
| .DBK | Sony Ericsson Mobile Phone Backup File | 3.5 |
| .DBL | DAZ Brick Light File | 2.3 |
| .DBM | DAZ Brick Material File | 3.0 |
| .DBML | Visual Studio OR Design File | 3.5 |
| .DBO | DarkBASIC Object | 2.5 |
| .DBPRO | DarkBASIC Professional Project File | 2.0 |
| .DBPROJ | Visual Studio Database Project File | 3.0 |
| .DBQ | AutoCAD Query Set | 2.3 |
| .DBR | DeepBurner Disc Project | 4.0 |
| .DBS | SQLBase Database File | 3.6 |
| .DBS | GAMBIT Mesh File | 2.8 |
| .DBV | Database Variable Field File | 2.0 |
| .DBX | Outlook Express E-mail Folder | 3.6 |
| .DBX | AutoCAD Database Extension File | 3.1 |
| .DC | DesignCAD Design File | 3.3 |
| .DC1 | DevCad Document | 3.7 |
| .DC2 | DesignCAD 2D ASCII Drawing | 3.8 |
| .DC2 | Kodak Photo-Enhancer File | 2.0 |
| .DC2 | DevCad Cam Pro Document | 1.5 |
| .DC3 | DesignCAD 3D ASCII Drawing | 4.0 |
| .DC4 | ViaThinkSoft (De)Coder 4 File | 3.3 |
| .DCB | Concordance Database File | 3.7 |
| .DCD | DesignCAD Drawing | 3.1 |
| .DCD | DisCryptor Encrypted Database | 2.8 |
| .DCE | DriveCam Event | 2.9 |
| .DCF | DRM Content Format File | 4.1 |
| .DCF | Safetica Free Encrypted Archive | 3.5 |
| .DCF | Document Computation Format | 3.3 |
| .DCK | Resolume Deck File | 3.3 |
| .DCL | AutoCAD Dialog Definition File | 4.3 |
| .DCM | DICOM Image | 3.2 |
| .DCM | DCM Audio Module | 3.0 |
| .DCM | DiskCatalogMaker Catalog | 3.0 |
| .DCMD | DiskCatalogMaker Thumbnail-Enabled Catalog | 3.7 |
| .DCMF | DiskCatalogMaker Catalog | 2.2 |
| .DCO | Safetica Free Encrypted Virtual Disk Archive | 4.0 |
| .DCOVER | Disc Cover File | 2.8 |
| .DCP | Adobe DNG Camera Profile | 3.2 |
| .DCP | Delphi Compiled Package | 3.7 |
| .DCPF | Disc Copier Project File | 2.0 |
| .DCPR | Adobe DNG Camera Profile Recipe | 4.0 |
| .DCPROJ | Dashcode Project | 2.5 |
| .DCR | Shockwave Media File | 4.0 |
| .DCR | Kodak Digital Camera RAW Image | 3.8 |
| .DCR | Digital Court Recorder Video File | 3.9 |
| .DCR | Liberty Video Recording File | 3.9 |
| .DCS | Desktop Color Separation File | 2.5 |
| .DCST | Adobe InDesign Document Presets File | 4.0 |
| .DCT | Dictionary File | 4.1 |
| .DCT | Dictation Audio File | 4.0 |
| .DCTMP | DC++ Partially Downloaded File | 2.8 |
| .DCU | Delphi Compiled Unit | 2.3 |
| .DCUIL | Delphi .NET Compiled Unit File | 3.0 |
| .DCX | FoxPro Database Index | 3.0 |
| .DCX | FAXserve Fax Document | 2.8 |
| .DD | DiskDoubler Archive | 3.5 |
| .DDB | Digidesign Database | 3.5 |
| .DDB | Command & Conquer: Renegade Data File | 3.3 |
| .DDC | DivX Descriptor File | 2.5 |
| .DDCX | DivX Descriptor 2 File | 2.4 |
| .DDD | GLBasic 3D Data File | 2.8 |
| .DDL | Data Definition Language File | 4.1 |
| .DDOC | DigiDoc Signature File | 3.7 |
| .DDP | DreamPlan Home Design Project | 4.3 |
| .DDRW | ClarisDraw Drawing | 2.5 |
| .DDS | DirectDraw Surface Image | 4.0 |
| .DDT | Football Manager Keep Player Data File | 4.0 |
| .DDT | Age of Mythology Textures File | 2.8 |
| .DE | DrawExpress Diagram File | 3.5 |
| .DEB | Debian Software Package | 4.0 |
| .DEC | Magic: The Gathering Online Deck File | 3.3 |
| .DEC | Declaration File | 3.1 |
| .DECRYPT | Decrypted Microsoft ESD File | 3.1 |
| .DEF | Module-Definition File | 3.9 |
| .DEFS | BlueJ Settings File | 3.6 |
| .DEFT | Juice Grinder Defaults File | 2.0 |
| .DEK | Magic: The Gathering Deck File | 4.4 |
| .DEK | Yugioh Virtual Desktop Deck File | 4.3 |
| .DEK | LackeyCCG Card Deck File | 3.7 |
| .DEM | Video Game Demo File | 4.2 |
| .DEM | Unreal Engine Game Replay File | 3.0 |
| .DEP | Windows Dependency File | 2.9 |
| .DEPROJ | Disketch Project File | 3.7 |
| .DER | DER Digital Certificate | 3.6 |
| .DES | Corel Designer File | 3.8 |
| .DESC | Battlefield 2 Map Description File | 3.2 |
| .DESCRIPTION | Youtube-dl Video Description | 2.7 |
| .DESIGN | Microsoft Expression Design Drawing | 2.5 |
| .DESKLINK | Desktop Shortcut | 4.0 |
| .DESKTHEMEPACK | Windows 8 Desktop Theme Pack File | 4.2 |
| .DESKTOP | Desktop Entry File | 4.2 |
| .DET | Sage ACT! 5 Email Message | 2.7 |
| .DEV | Windows Device Driver File | 3.2 |
| .DEVELOPERPROFILE | Xcode Developer Profile | 1.7 |
| .DEVELVE | Develve Data File | 1.5 |
| .DEVICEIDS | Device Identification FIle | 1.7 |
| .DEVICEINFO | Device Record | 3.6 |
| .DEWF | SoundEdit Recorded Instrument | 3.5 |
| .DEX | Dalvik Executable File | 3.9 |
| .DEX | DEXIS Digital X-ray File | 3.2 |
| .DF1 | Omnis Native Datafile | 3.5 |
| .DFF | RenderWare Model File | 4.3 |
| .DFF | Direct Stream Digital Audio | 4.0 |
| .DFK | Dark Flow Project File | 1.2 |
| .DFM | Delphi Form | 2.3 |
| .DFM | Midas ViewPoint Display Form | 3.0 |
| .DFONT | Mac OS X Data Fork Font | 3.2 |
| .DFP | Fusion Plugin File | 3.0 |
| .DFPROJ | DVD Flick Project | 3.5 |
| .DFS | BrainSuite Surface File | 3.0 |
| .DFT | Solid Edge Draft Document | 3.1 |
| .DFU | iOS DFU File | 3.5 |
| .DFX | Drafix CAD File | 3.5 |
| .DGB | FlashCAD Drawing Database | 3.0 |
| .DGC | DGCA File Archive | 3.0 |
| .DGK | Delcam 3D Model File | 3.4 |
| .DGML | Visual Studio Directed Graph Document | 3.8 |
| .DGN | MicroStation Design | 3.6 |
| .DGSL | Visual Shader Graph File | 3.3 |
| .DGT | DST Thumbnail File | 3.6 |
| .DHCD | DHCD Computing Application Data File | 4.3 |
| .DHS | HyperSnap Drawing | 3.0 |
| .DHTML | Dynamic HTML file | 4.1 |
| .DHV | Husqvarna Viking Embroidery Design File | 1.8 |
| .DIA | Dia Diagram File | 3.2 |
| .DIA | Do It Again Task File | 4.0 |
| .DIAGCAB | Troubleshooting Pack Cabinet File | 3.8 |
| .DIAGCFG | Troubleshooting Pack Configuration File | 2.5 |
| .DIAGPKG | Troubleshooting Pack File | 3.0 |
| .DIAGSESSION | Diagnostics Session File | 3.0 |
| .DIB | Device-Independent Bitmap Image | 4.0 |
| .DIC | Dictionary File | 3.3 |
| .DIC | Windows 10 Custom Spelling Dictionary | 2.6 |
| .DICOM | DICOM Image | 2.8 |
| .DICT | Dictionary File | 4.5 |
| .DIF | Data Interchange Format | 3.9 |
| .DIF | MAME CHD Diff File | 2.7 |
| .DIF | Torque Game Engine Model File | 2.2 |
| .DIF | Digital Interface Format | 2.5 |
| .DIFF | Patch File | 3.4 |
| .DIG | Sound Designer Audio File | 3.5 |
| .DII | Summation Batch Load File | 3.0 |
| .DIM | Active@ Raw Disk Image Backup File | 3.5 |
| .DINO | Dinopixel Drawing | 2.0 |
| .DIP | DipTrace Printed Circuit Board File | 3.4 |
| .DIR | Adobe Director Movie | 3.9 |
| .DIRECTORY | KDE Folder View Properties File | 3.8 |
| .DIS | Oracle Discoverer Workbook | 2.9 |
| .DISABLED | Spybot - Search & Destroy Disabled File | 2.7 |
| .DISC | Roxio Toast Document | 2.9 |
| .DISCO | DISCO Discovery Document | 3.7 |
| .DISCOMAP | DISCO Discovery Output File | 3.2 |
| .DISCORDBOT | Discord Bot Maker Project | 3.0 |
| .DISK | Linux Virtual Hard Disk | 3.7 |
| .DISKDEFINES | Linux LiveCD Information File | 3.6 |
| .DIST | Mac OS X Distribution Script | 2.2 |
| .DIT | Active Directory Information Tree File | 3.8 |
| .DITA | DITA Document | 4.3 |
| .DITAMAP | DITA Topic Map File | 4.0 |
| .DITAVAL | DITA Conditions File | 3.0 |
| .DIV | DIVA-GIS Project File | 4.0 |
| .DIVA | Project DIVA Song File | 4.6 |
| .DIVX | DivX-Encoded Movie | 3.3 |
| .DIX | DIVA-GIS Export File | 3.6 |
| .DIZ | Description in Zip File | 3.8 |
| .DJR | Ringtone Media Studio DJ Ringtone Project | 2.0 |
| .DJVU | DjVu Image | 3.8 |
| .DJVU | STOP DJVU Ransomware Encrypted File | 3.0 |
| .DKT | DiGiTIAL THUNDER Drum Kit File | 4.0 |
| .DL | Zoo Tycoon 2 Data File | 3.5 |
| .DLC | Download Link Container File | 3.1 |
| .DLD | EdLog Compiled Program | 3.7 |
| .DLG | Digital Line Graph | 3.0 |
| .DLIS | DLIS Well Log Data File | 3.7 |
| .DLL | Dynamic Link Library | 4.2 |
| .DLL | DLL Dynamic Webpage | 4.1 |
| .DLM | Akamai Download Manager File | 3.8 |
| .DLO | 3ds Max Object Plugin | 4.0 |
| .DLR | finalRender Plugin | 4.3 |
| .DLS | Downloadable Sounds File | 3.1 |
| .DLT | DELTA Binary Dataset File | 3.6 |
| .DLTEMP | UC Browser Temporary Download File | 3.3 |
| .DLU | 3ds Max Utility Plug-in File | 3.3 |
| .DLV | CATIA 4 Export File | 4.3 |
| .DLX | DIALux Document | 3.3 |
| .DL_ | Compressed DLL File | 4.0 |
| .DM | DRM Delivery Message | 3.8 |
| .DM | BYOND Dream Maker Code | 3.5 |
| .DM1 | ER/Studio Data Model File | 3.3 |
| .DM2 | Toad Data Modeler 2 File | 4.0 |
| .DM2 | Quake 2 Demo File | 3.0 |
| .DM3 | DigitalMicrograph Image | 2.0 |
| .DM3 | Quake III Demo | 2.0 |
| .DMB | BYOND Game Executable | 3.7 |
| .DMC | Datamartist Data Canvas File | 3.9 |
| .DMC | Mimic Configuration File | 3.0 |
| .DMC | DPCM Sample File | 2.9 |
| .DMD | SQL Developer Data Modeler File | 3.6 |
| .DMF | Delusion Digital Music File | 2.8 |
| .DMG | Apple Disk Image | 4.2 |
| .DMGPART | Mac OS X Disk Image Part | 4.0 |
| .DMI | BYOND Dream Maker Icon File | 3.0 |
| .DML | DynaScript File | 3.3 |
| .DMM | iMindQ Mind Map File | 4.0 |
| .DMMX | iMindQ XML Map Bundle | 3.8 |
| .DMO | Duke Nukem 3D Demo File | 2.3 |
| .DMO | Movienizer Database File | 1.5 |
| .DMO | Cube 2 Demo File | 4.5 |
| .DMP | Windows Memory Dump | 4.2 |
| .DMPR | Direct Mail Project File | 4.3 |
| .DMR | BrainVoyager Diffusion Weighted Project File | 4.0 |
| .DMS | Amiga Disk Masher Image | 2.8 |
| .DMS | Dream Maker Script | 3.1 |
| .DMSA | Music Disc Creator Project File | 3.5 |
| .DMSD | Roxio MyDVD Project | 3.1 |
| .DMSD3D | Roxio MyDVD 3D Project | 2.0 |
| .DMSE | Sound Editor Project File | 4.0 |
| .DMSM | VideoWave Movie Project File | 3.8 |
| .DMSM3D | VideoWave 3D Movie Project File | 3.7 |
| .DMSP | PhotoSuite Project File | 2.3 |
| .DMSS | VideoWave SlideShow Project File | 2.3 |
| .DMT | DeLorme Transfer File | 3.5 |
| .DMX | Source Filmmaker Project | 3.8 |
| .DMX-INFO | DriverMax Driver Information File | 2.0 |
| .DM_68 | Quake III Demo | 3.5 |
| .DM_82 | Wolfenstein 1.00 Demo Movie File | 3.0 |
| .DM_83 | Wolfenstein 1.02 Demo Movie File | 3.7 |
| .DM_84 | Wolfenstein 2.06 Demo Movie File | 2.8 |
| .DNA | CA Backup and Migration Backup File | 2.5 |
| .DNA | SnapGene DNA File | 4.0 |
| .DNA | GenePool DNA File | 1.5 |
| .DNE | Netica Text File | 2.1 |
| .DNF | Duke Nukem Forever Map File | 3.0 |
| .DNG | Digital Negative Image | 3.9 |
| .DNG | Apple ProRAW Image | 3.7 |
| .DNL | DNAML eBook | 3.8 |
| .DNS | Duke Nukem Forever Save File | 3.0 |
| .DO | Java Servlet | 3.5 |
| .DOB | Visual Basic UserDocument | 3.2 |
| .DOC | Microsoft Word Document (Legacy) | 4.0 |
| .DOCKZIP | ObjectDock File | 3.8 |
| .DOCM | Microsoft Word Macro-enabled Document | 3.6 |
| .DOCSET | Doxygen Document Set File | 2.4 |
| .DOCX | Microsoft Word Document | 3.8 |
| .DOK | DesktopOK Icons Layout File | 4.0 |
| .DOL | GameCube Executable File | 3.4 |
| .DOLPHINVIEW | Dolphin Folder View Settings File | 4.2 |
| .DOT | Microsoft Word Document Template (Legacy) | 3.6 |
| .DOTM | Microsoft Word Macro-Enabled Document Template | 3.9 |
| .DOTX | Microsoft Word Template | 3.8 |
| .DOWNLOAD | Partially Downloaded File | 4.1 |
| .DOWNLOADHOST | MSN Download Settings File | 3.9 |
| .DOWNLOADING | Pando Incomplete Download File | 4.3 |
| .DOX | Visual Basic Binary UserDocument | 3.9 |
| .DP1 | DataPower Database File | 3.8 |
| .DPA | DrawPlus Animation File | 3.7 |
| .DPB | DataPilot Backup File | 3.7 |
| .DPB | DVD Profiler Backup File | 2.0 |
| .DPD | Ovation Pro Document | 3.1 |
| .DPDOC | Digital Performer Project | 3.0 |
| .DPF | Dargon Package | 3.7 |
| .DPG | Nintendo DS Movie File | 3.3 |
| .DPK | Delphi Package | 2.5 |
| .DPKW | Delphi Package | 3.0 |
| .DPL | Delphi Package Library | 3.6 |
| .DPM | Pro Tools Plugin File | 3.3 |
| .DPN | Depiction Data File | 3.8 |
| .DPP | DrawPlus Drawing File | 3.6 |
| .DPR | Delphi Project | 3.6 |
| .DPR | Digital InterPlot File | 3.7 |
| .DPROJ | Delphi Project | 3.7 |
| .DPS | Kingsoft Presentation File | 3.3 |
| .DPT | Kingsoft Presentation Template | 3.2 |
| .DPV | Siemens NX Drafting Standard File | 2.6 |
| .DPX | Digital Picture Exchange File | 3.0 |
| .DPX | VASCO DIGIPASS File | 2.3 |
| .DPX | DrawPlus Template | 2.8 |
| .DQY | Microsoft Excel Query | 3.3 |
| .DR | DRM Rights Object | 3.0 |
| .DR5 | Dramatica Story Expert Project | 3.5 |
| .DRA | OrCAD Drawing File | 2.0 |
| .DRA | Nuance Dragon Voice Recording File | 3.4 |
| .DRA | Dolphin PartMaster Drawing File | 3.0 |
| .DRAWING | Artboard Drawing | 3.0 |
| .DRAWIT | DrawIt Drawing | 3.5 |
| .DRC | DRM Rights Object | 3.8 |
| .DREAM | Dream Animated Wallpaper File | 3.6 |
| .DREAM | Procreate Dreams Project | 4.0 |
| .DRES | Delphi Compiled Resource File | 2.7 |
| .DRF | VIZ Render File | 3.0 |
| .DRF | Dynojet Run File | 1.5 |
| .DRG | I-Doser Audio Drug File | 3.3 |
| .DRL | Gerber Drill Rack File | 4.0 |
| .DRM | Cubase Drum Map File | 2.8 |
| .DRMX | Drumlin Fully Secure PDF File | 3.5 |
| .DRMZ | Drumlin Fully Secure Mobile PDF File | 4.4 |
| .DRP | DrawPad Image Project | 2.8 |
| .DRP | DaVinci Resolve Project | 4.0 |
| .DRPM | Delta RPM File | 3.9 |
| .DRSCAN | Data Rescue Scans File | 3.0 |
| .DRV | Device Driver | 3.7 |
| .DRV | Nix Derviation | 4.3 |
| .DRW | Drawing File | 3.7 |
| .DRW | Corel Drawing File | 3.6 |
| .DRWDOT | SolidWorks Drawing Template | 3.2 |
| .DS | DAZ Studio 1/2 Script | 3.9 |
| .DS | LMMS DrumSynth File | 3.4 |
| .DS2 | Olympus DSS Pro Audio File | 3.2 |
| .DSA | DAZ Studio 3+ Script | 3.6 |
| .DSB | Wondershare DVD Slideshow Builder Project | 3.0 |
| .DSB | Dell DataSafe Backup File | 4.2 |
| .DSB | DAZ Studio Binary Script | 3.3 |
| .DSB | Orchida Embroidery File | 3.3 |
| .DSC | Nikon Disk Identification File | 3.1 |
| .DSC | Debian Source Control File | 3.1 |
| .DSC | Celestia Deep Space Catalog File | 2.6 |
| .DSD | AutoCAD Drawing Set Description File | 4.3 |
| .DSD | Diet Studio Data File | 1.5 |
| .DSD | DAZ Studio Object Morph File | 1.5 |
| .DSE | DAZ Studio Encrypted Script | 3.0 |
| .DSF | DAZ Studio Asset File | 3.2 |
| .DSF | Dramatica Pro Project | 2.4 |
| .DSF | Delusion Digital Sound File | 3.5 |
| .DSG | Doom Saved Game | 4.2 |
| .DSGM | DS Game Maker Project | 3.5 |
| .DSI | DAZ Studio Layered Image Set | 2.6 |
| .DSI | Double-Precision Spectral Image | 2.0 |
| .DSK | Disk Image | 4.0 |
| .DSK | Borland Project Desktop File | 3.8 |
| .DSKIN | DockX Skin | 1.5 |
| .DSL | Lingvo Dictionary File | 3.7 |
| .DSM | Digital Sound Module | 4.0 |
| .DSN | Database Source Name File | 3.5 |
| .DSN | OrCAD Design File | 3.7 |
| .DSO | DAZ Studio Object File | 2.3 |
| .DSP | Visual C++ 6 Project | 2.8 |
| .DSS | Digital Speech Standard File | 3.5 |
| .DSS | DCC Active Designer File | 2.8 |
| .DST | AutoCAD Sheet Set | 3.8 |
| .DST | Tajima Embroidery Format | 3.4 |
| .DSTUDIO | DownloadStudio Incomplete Download | 3.0 |
| .DSV | DeSmuME Saved Game | 4.4 |
| .DSV | DAZ Studio UV Mapping File | 4.3 |
| .DSW | Visual C++ 6 Workspace File | 3.1 |
| .DSX | Diet Studio XML File | 2.0 |
| .DSX | DAZ Studio XML File | 3.8 |
| .DSY | Directory Synchronizer Project File | 3.5 |
| .DSYM | Xcode Debug Symbols File | 3.2 |
| .DSZ | Orchida (OES) Embroidery File | 3.6 |
| .DSZ | DS Player Saved Game | 3.5 |
| .DS_STORE | Mac OS X Folder Settings File | 3.8 |
| .DT | Drum Station Machine State File | 2.8 |
| .DT0 | DTED Level 0 File | 4.0 |
| .DT1 | DTED Level 1 File | 3.8 |
| .DT2 | Windows Live Messenger Emoticon Image File | 2.8 |
| .DT2 | DTED Level 2 File | 2.3 |
| .DTA | Stata Dataset | 3.0 |
| .DTAPART | DownThemAll! Partially Downloaded File | 4.2 |
| .DTD | Document Type Definition File | 3.8 |
| .DTM | Digital Tracker Module | 4.0 |
| .DTP | Publish-iT Document | 3.6 |
| .DTR | DATroniC Data Recording | 3.8 |
| .DTS | DTS Encoded Audio File | 3.1 |
| .DTSCONFIG | SSIS Package Configuration File | 2.8 |
| .DTSHD | DTS-HD Master Audio File | 3.4 |
| .DTSX | DTS Settings File | 4.2 |
| .DTW | Desktop Wallpaper | 3.6 |
| .DTX | Documented LaTeX File | 3.7 |
| .DUC | Action Replay Max DS Save File | 3.6 |
| .DUCK | Cyberduck Bookmark | 3.7 |
| .DUCKLOAD | DuckDuckGo Partially Downloaded File | 3.5 |
| .DUF | DAZ User File | 4.3 |
| .DUID | DHCPv6 Unique Identifier | 3.0 |
| .DUN | Dungeon Defenders Saved Game File | 3.0 |
| .DUN | Dial Up Network File | 2.0 |
| .DUP0 | Kies Sync Duplicate File | 4.0 |
| .DUPEGURU | dupeGuru Duplicate File List | 2.7 |
| .DV | Digital Video File | 3.7 |
| .DV-AVI | Microsoft DV-AVI Video File | 2.8 |
| .DV2 | Divinity 2 Data File | 3.5 |
| .DVB | AutoCAD VBA Project File | 3.9 |
| .DVC | Dragon Voice Command File | 4.2 |
| .DVD | CloneCD DVD Information File | 4.1 |
| .DVDMEDIA | RipIt DVD Package | 3.4 |
| .DVDPROJ | iDVD Project File | 3.5 |
| .DVDS | DVDStyler Project File | 3.5 |
| .DVF | Sony Digital Voice File | 3.3 |
| .DVI | Device Independent Format File | 3.3 |
| .DVL | Dalim Virtual Library File | 1.9 |
| .DVO | Cook'n Cookbook File | 3.7 |
| .DVR | Microsoft Recorded TV Show | 3.6 |
| .DVR-MS | Microsoft Digital Video Recording | 3.5 |
| .DVT | Digital Video Transcript | 3.0 |
| .DVTCOLORTHEME | Xcode Color Theme File | 3.0 |
| .DVX | DivX Video File | 3.0 |
| .DW | David Whittaker Audio File | 3.0 |
| .DWC | Emulex DWC Firmware Update File | 2.5 |
| .DWD | DavkaWriter File | 2.4 |
| .DWD | DiamondWare Digitized Audio | 2.0 |
| .DWDOC | DrawWell Document | 3.0 |
| .DWF | Design Web Format File | 3.9 |
| .DWFX | Design Web Format XPS File | 3.7 |
| .DWG | AutoCAD Drawing | 3.5 |
| .DWI | Dance With Intensity Step File | 3.0 |
| .DWLIBRARY | Paperless Document Library | 3.3 |
| .DWN | Firmware Update File | 2.3 |
| .DWS | Dyalog Workspace File | 4.0 |
| .DWS | AutoCAD Drawing Standards File | 3.7 |
| .DWS | Adobe Dreamweaver Site Cache File | 3.8 |
| .DWT | Dreamweaver Webpage Template | 3.8 |
| .DWT | AutoCAD Drawing Template | 4.0 |
| .DXB | Drawing Exchange Binary | 2.9 |
| .DXE | AutoCAD Data Extraction Template | 3.3 |
| .DXF | Drawing Exchange Format File | 3.5 |
| .DXL | Domino XML Language File | 3.7 |
| .DXL | Rational DOORS Script | 2.7 |
| .DXLS | DashXL Skin Set File | 2.0 |
| .DXP | CDBurnerXP Data Compilation File | 2.7 |
| .DXR | Protected Macromedia Director Movie | 3.7 |
| .DXX | AutoCAD Drawing Interchange Attribute File | 3.4 |
| .DZ | Dzip File | 4.0 |
| .DZIP | The Witcher 2 Game Archive | 3.3 |
| .DZM | DirectorZone Menu Template | 3.6 |
| .DZP | DirectorZone Particle Effect File | 3.5 |
| .DZT | DirectorZone Title File | 3.5 |
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