File extension	The full name of the file	Popularity
File extension D	D Source Code File
File extension D00	VirtualDrive Disc Image Part File
File extension D01	VirtualDrive Disc Image Part 2 File
File extension D2S	Diablo 2 Save File
File extension D2V	DVD2AVI File
File extension D3D	Corel Dream 3D drawing file
File extension D3DBSP	Call of Duty Map File
File extension D3V	Datel Video File
File extension D64	Commodore 64 Disk Image
File extension D88	Toshiba Pasopia 7 Disk File
File extension DA0	Windows Registry Backup File
File extension DA2	DeepAnalysis Save File
File extension DAA	PowerISO Direct-Access-Archive
File extension DABRIEFCASE	RemObjects Data Abstract File Briefcase
File extension DACONFIG	RemObjects Data Abstract Configuration File
File extension DACONNECTIONS	RemObjects Data Abstract Connections File
File extension DACPAC	SQL Server Data Tier Application Package
File extension DAD	RemObjects Data Abstract Driver File
File extension DADIAGRAMS	RemObjects Data Abstract Data Diagrams File
File extension DAE	Digital Asset Exchange File
File extension DAF	Digital Anchor File
File extension DAL	DVD-lab project file
File extension DAM	DeltaMaster Analysis Model
File extension DAO	Disk at Once CD/DVD Image
File extension DAP	Download Accelerator partial download file
File extension DAR	DAR Disk Archive
File extension DAS	DeltaMaster Analysis Session
File extension DASCHEMA	Data Abstract database schema file
File extension DASH	Dashlane Profile
File extension DAT	Data File
File extension DATA	Analysis Studio Offline Data File
File extension DAT_MCR	Minecraft Level.dat Backup File
File extension DAT_NEW	Minecraft World Level File
File extension DAT_OLD	Minecraft Level.dat Backup File
File extension DAV	DVR365 Video File
File extension DAX	PSP Compressed ISO Disc Image
File extension DAY	Day of the Zombie Map File
File extension DAZ	DAZ Studio 3D Scene
File extension DAZIP	Dragon Age: Origins Game File
File extension DB	Database File
File extension DB-	Norton Nprotect Database File
File extension DB-SHM	SQLite Database Shared Memory File
File extension DB-WAL	SQLite Database Write-Ahead Log File
File extension DB1	Tekla Structures Model File
File extension DB2	dBASE II Database
File extension DB3	SQLite Database File
File extension DBA	Palm Datebook Backup File
File extension DBB	Skype User Information File
File extension DBC	OrCAD capture CIS database configuration file
File extension DBD	DemoShield Project
File extension DBF	Database File
File extension DBG	FoxPro Debugger Configuration
File extension DBGSYM	Debug Symbols File
File extension DBK	OrCAD schematic capture backup file
File extension DBL	DAZ Brick Light File
File extension DBM	ColdFusion Server File
File extension DBML	Visual Studio OR Design File
File extension DBO	DarkBASIC Object
File extension DBPRO	DarkBASIC Professional Project File
File extension DBPROJ	Visual Studio Database Project File
File extension DBQ	Paradox memo file
File extension DBR	DeepBurner Disc Project
File extension DBS	SQLBase Database File
File extension DBT	Database Text File
File extension DBV	Database Variable Field
File extension DBX	Outlook Express E-mail Folder
File extension DC	DesignCAD Design File
File extension DC1	DevCad Document
File extension DC2	Kodak DC25 Digital Camera file
File extension DC3	Medicine image file format
File extension DC4	ViaThinkSoft (De)Coder 4 File
File extension DCA	DisplayWrite Document
File extension DCB	Concordance Database File
File extension DCD	DesignCAD Drawing
File extension DCE	DriveCam Video File
File extension DCF	DRM Content Format File
File extension DCK	Resolume Deck File
File extension DCL	AutoCAD Dialog Definition File
File extension DCM	DICOM Image
File extension DCMD	DiskCatalogMaker Thumbnail-Enabled Catalog
File extension DCMF	DiskCatalogMaker Catalog
File extension DCO	DisCryptor encrypted archive
File extension DCOVER	Disc Cover File
File extension DCP	Adobe DNG Camera Profile
File extension DCPF	Disc Copier Project File
File extension DCPR	Adobe DNG Camera Profile Recipe File
File extension DCPROJ	Dashcode Project
File extension DCR	Kodak RAW Image File
File extension DCS	Desktop Color Separation File
File extension DCST	Adobe InDesign Document Presets File
File extension DCT	Dictionary File
File extension DCTMP	DC++ Partially Downloaded File
File extension DCU	Delphi Compiled Unit
File extension DCUIL	Delphi .NET Compiled Unit File
File extension DCX	FoxPro Database Index
File extension DD	Doodle C64 image file
File extension DDAT	DivX Temporary Video File
File extension DDB	Digidesign Database
File extension DDC	DivX Descriptor File
File extension DDCX	DivX Descriptor 2 File
File extension DDD	Adobe Distiller file
File extension DDF	Diamond Directive File
File extension DDL	Data Definition Language File
File extension DDP	Delphi Diagram Portfolio File
File extension DDRW	ClarisDraw Drawing
File extension DDS	DirectDraw Surface
File extension DDT	Football Manager Keep Player Data File
File extension DEB	Debian Software Package
File extension DEC	Declaration File
File extension DECRYPT	Decrypted Microsoft ESD File
File extension DED	Dr. Engrave Document
File extension DEF	Module-Definition File
File extension DEK	Magic: The Gathering Deck File
File extension DEM	Video Game Demo File
File extension DEP	Windows Dependency File
File extension DEPEND	Code::Blocks Dependencies File
File extension DEPROJ	Disketch Project File
File extension DER	DER Certificate File
File extension DES	Corel Designer File
File extension DESC	Battlefield 2 Map Description File
File extension DESIGN	Microsoft Expression Design Drawing
File extension DESKLINK	Desktop Shortcut
File extension DESKTHEMEPACK	Windows 8 Desktop Theme Pack File
File extension DESKTOP	Desktop Entry File
File extension DET	Sage ACT! 5 Email Message
File extension DEV	Windows Device Driver File
File extension DEVELOPERPROFILE	Xcode Developer Profile
File extension DEVELVE	Develve Data File
File extension DEVICEIDS	Device Identification FIle
File extension DEVICEINFO	Device Record
File extension DEVICESALT	NOOK Device Salt File
File extension DEWF	SoundEdit Recorded Instrument
File extension DEX	Dalvik Executable File
File extension DF1	Omnis Native Datafile
File extension DF2	Defractor 2 Instrument
File extension DFC	Defractor Instrument
File extension DFF	RenderWare Model File
File extension DFG	Data Flask Grid File
File extension DFK	Dark Flow Project File
File extension DFM	Delphi Form
File extension DFONT	Mac OS X Data Fork Font
File extension DFP	Fusion Plugin File
File extension DFPROJ	DVD Flick Project
File extension DFS	AutoCAD utility defaults file format
File extension DFT	Solid Edge Draft Document
File extension DFU	iOS DFU File
File extension DFX	Drafix CAD File
File extension DGB	FlashCAD Drawing Database
File extension DGC	DGCA File Archive
File extension DGK	Delcam 3D Model File
File extension DGML	Visual Studio Directed Graph Document
File extension DGN	MicroStation Design File
File extension DGS	Dagesh Pro Document
File extension DGSL	Visual Shader Graph File
File extension DGT	DST Thumbnail File
File extension DHCD	DHCD Computing Application Data File
File extension DHS	HyperSnap Drawing
File extension DHT	GAUSS Data Set Header File
File extension DHTML	Dynamic HTML file
File extension DIA	Dia Diagram File
File extension DIAGCAB	Troubleshooting Pack Cabinet File
File extension DIAGCFG	Troubleshooting Pack Configuration File
File extension DIAGPKG	Troubleshooting Pack File
File extension DIB	Device Independent Bitmap File
File extension DIC	Dictionary File
File extension DICOM	DICOM Image File
File extension DICPROOF	Microsoft Dictionary Proofing File
File extension DIF	Data Interchange Format
File extension DIG	Digilink Audio File
File extension DII	Summation Batch Load File
File extension DIM	DIME File
File extension DIMAX	DiMAX Firmware Image File
File extension DIME	Direct Internet Message Encapsulation File
File extension DINFO	DivX Temporary Video Info File
File extension DIR	Adobe Director Movie
File extension DIRECTORY	KDE Folder View Properties File
File extension DIS	Oracle Discoverer Workbook
File extension DISABLED	Spybot - Search & Destroy Disabled File
File extension DISC	Toast Document
File extension DISCO	DISCO Discovery Document
File extension DISCOMAP	DISCO Discovery Output File
File extension DISK	Linux Virtual Hard Disk
File extension DISKDEFINES	Linux LiveCD Information File
File extension DIST	Mac OS X Distribution Script
File extension DIT	Active Directory Information Tree File
File extension DITA	DITA Document
File extension DITAMAP	DITA Topic Map File
File extension DITAVAL	DITA Conditions File
File extension DIV	DivX movie
File extension DIVA	Project DIVA Song File
File extension DIVX	DivX-Encoded Movie File
File extension DIX	DIVA-GIS Export File
File extension DIY	My Drivers Backup Setup File
File extension DIZ	Description in Zip File
File extension DJM	Dynojet Map File
File extension DJR	Ringtone Media Studio DJ Ringtone Project
File extension DJV	DjVu Image
File extension DJVU	DjVu Image
File extension DKE	DriveLock FDE Disk Key File
File extension DKT	DiGiTIAL THUNDER Drum Kit File
File extension DL	Zoo Tycoon 2 Data File
File extension DLC	Download Link Container File
File extension DLD	EdLog Compiled Program
File extension DLG	Digital Line Graph
File extension DLL	Dynamic Link Library
File extension DLM	Akamai Download Manager File
File extension DLO	3ds Max Plug-in
File extension DLS	Downloadable Sounds File
File extension DLU	3ds Max Utility Plug-in File
File extension DLV	CATIA 4 Export File
File extension DLX	Sony VDU file format importer
File extension DL_	Compressed DLL File
File extension DM	Paradox data model file
File extension DM1	ER/Studio Data Model File
File extension DM2	Toad Data Modeler 2 File
File extension DM3	DigitalMicrograph Image
File extension DMB	BYOND Game Executable
File extension DMC	Datamartist Data Canvas File
File extension DMD	SQL Developer Data Modeler File
File extension DMF	Delusion Digital Music File
File extension DMG	Mac OS X Disk Image
File extension DMGPART	Mac OS X Disk Image Part
File extension DMI	BYOND Dream Maker Icon File
File extension DML	DynaScript File
File extension DMM	DropMind Mind Map File
File extension DMMX	DropMind XML Map Bundle
File extension DMO	Duke Nukem 3D Demo File
File extension DMP	Windows Memory Dump
File extension DMPR	Direct Mail Project File
File extension DMR	BrainVoyager Diffusion Weighted Project File
File extension DMS	Disk Masher Image
File extension DMSA	Music Disc Creator Project File
File extension DMSD	Roxio MyDVD Project
File extension DMSD3D	Roxio MyDVD 3D Project
File extension DMSE	Sound Editor Project File
File extension DMSK	DivX Temporary Video Data File
File extension DMSM	VideoWave Movie Project File
File extension DMSM3D	VideoWave 3D Movie Project File
File extension DMSP	PhotoSuite Project File
File extension DMSS	VideoWave SlideShow Project File
File extension DMT	Delphi menu template file
File extension DMTEMPLATE	Direct Mail Template
File extension DMX	Source Filmmaker Project File
File extension DMX-INFO	DriverMax Driver Information File
File extension DM_68	Quake 3 Demo File
File extension DM_82	Wolfenstein 1.00 Demo Movie File
File extension DM_83	Wolfenstein 1.02 Demo Movie File
File extension DM_84	Wolfenstein 2.06 Demo Movie File
File extension DN1	Duke Nukem 1 Game Data File
File extension DN2	Duke Nukem Episode 2 Game File
File extension DN3	Duke Nukem Episode 3 Game File
File extension DNA	CA Backup and Migration Backup File
File extension DNC	Windows Dancer File
File extension DNE	Netica Text File
File extension DNF	Duke Nukem Forever Map File
File extension DNG	Digital Negative Image File
File extension DNH	Danmakufu Script
File extension DNL	DNAML eBook File
File extension DNS	DynSite Plug-in File
File extension DO	Java Servlet
File extension DOB	Visual Basic UserDocument
File extension DOC	Microsoft Word Document
File extension DOC#	Microsoft Word Document
File extension DOCHTML	Microsoft Word HTML Document
File extension DOCKZIP	ObjectDock File
File extension DOCM	Word Open XML Macro-Enabled Document
File extension DOCMHTML	Microsoft Word MIME HTML Document
File extension DOCSET	Doxygen Document Set File
File extension DOCX	Microsoft Word Open XML Document
File extension DOCXML	Microsoft Word XML Document
File extension DOCZ	ThinkFree Online Note Document
File extension DOL	GameCube Executable File
File extension DOLPHINVIEW	Dolphin Folder View Settings File
File extension DOT	Word Document Template
File extension DOTHTML	Microsoft Word HTML Document Template
File extension DOTM	Word Open XML Macro-Enabled Document Template
File extension DOTX	Word Open XML Document Template
File extension DOV	Temp File
File extension DOWNLOAD	Partially Downloaded File
File extension DOWNLOADHOST	MSN Download Settings File
File extension DOWNLOADING	Pando Incomplete Download File
File extension DOX	Visual Basic Binary UserDocument
File extension DP1	DataPower Database File
File extension DPA	DrawPlus Animation File
File extension DPB	DataPilot Backup File
File extension DPD	Ovation Pro File
File extension DPF	F-Secure default policy file
File extension DPG	Nintendo DS Movie File
File extension DPK	Delphi Package
File extension DPKW	Delphi Package
File extension DPL	Delphi Package Library
File extension DPM	Pro Tools Plugin File
File extension DPN	Depiction Data File
File extension DPP	DrawPlus Drawing File
File extension DPR	Delphi Project
File extension DPROJ	Delphi Project
File extension DPS	DivX player skin
File extension DPT	Kingsoft Presentation Template
File extension DPV	Siemens NX Drafting Standard File
File extension DPX	Digital Picture Exchange File
File extension DQY	Excel Query File
File extension DR	DRM Rights Object
File extension DRA	OrCAD Drawing File
File extension DRAWING	Artboard Drawing
File extension DRAWIT	DrawIt Drawing
File extension DRC	DRM Rights Object
File extension DREAM	Dream Animated Wallpaper File
File extension DRES	Delphi Compiled Resource File
File extension DRF	VIZ Render File
File extension DRG	I-Doser Audio Drug File
File extension DRL	Gerber Drill Rack File
File extension DRM	Cubase Drum Map File
File extension DRMX	Drumlin Fully Secure PDF File
File extension DRMZ	Drumlin Fully Secure Mobile PDF File
File extension DRPM	Delta RPM File
File extension DRSCAN	Data Rescue Scans File
File extension DRV	Device Driver
File extension DRW	Drawing File
File extension DRWDOT	SolidWorks Drawing Template
File extension DRZ	DReport compressed report file
File extension DS	DAZ Studio 1/2 Script
File extension DS2	Olympus DSS Pro Audio File
File extension DSA	DAZ Studio 3+ Script
File extension DSB	Wondershare DVD Slideshow Builder Project
File extension DSC	Nikon Disk Identification File
File extension DSD	AutoCAD Drawing Set Description File
File extension DSE	DAZ Studio Encrypted Script
File extension DSF	DAZ Studio Asset File
File extension DSG	Control Studio Document
File extension DSGM	DS Game Maker Project
File extension DSI	DAZ Studio Layered Image Set
File extension DSK	Disk Image
File extension DSKIN	DockX Skin
File extension DSM	Digital Sound Module
File extension DSN	Database Source Name File
File extension DSO	Microsoft Visual Studio workspace file
File extension DSP	Visual C++ 6 Project
File extension DSS	Digital Speech Standard File
File extension DST	Tajima Embroidery format
File extension DSTUDIO	DownloadStudio Incomplete Download
File extension DSV	DeSmuME Save File
File extension DSW	Visual C++ 6 Workspace File
File extension DSX	Diet Studio XML File
File extension DSY	Directory Synchronizer Project File
File extension DSYM	ArchiCAD for MAC Geometric Description Language file
File extension DSZ	Orchida (OES) Embroidery File
File extension DS_STORE	Mac OS X Folder Settings File
File extension DT	Macintosh file data fork
File extension DT0	DTED Level 0 File
File extension DT1	DTED Level 1 File
File extension DT2	Windows Live Messenger Emoticon Image File
File extension DTA	Data file
File extension DTAPART	DownThemAll! Partially Downloaded File
File extension DTD	Document Type Definition File
File extension DTF	ACDSee thumbnail database file
File extension DTM	Audio module
File extension DTP	Publish-iT Document
File extension DTR	DATroniC Data Recording
File extension DTS	DTS Encoded Audio File
File extension DTSHD	DTS-HD Master Audio File
File extension DTSX	DTS Settings File
File extension DTW	Desktop Wallpaper
File extension DTX	Documented LaTeX File
File extension DT_	Macintosh Data Fork
File extension DUC	Action Replay Max DS Save File
File extension DUCK	Cyberduck Bookmark
File extension DUMP	Google BreakPad Crash Log File
File extension DUN	Dungeon Defenders Saved Game File
File extension DUS	Readiris Font Dictionary
File extension DV	Digital Video File
File extension DV-AVI	Microsoft DV-AVI Video File
File extension DV2	Divinity 2 Data File
File extension DV4	Bosch Security Systems CCTV Video File
File extension DVC	Dragon Voice Command File
File extension DVD	CloneCD DVD Information File
File extension DVDMEDIA	RipIt DVD Package
File extension DVDPROJ	iDVD Project File
File extension DVDR	DVD/CD-R Master Image
File extension DVDS	DVDStyler Project File
File extension DVF	Sony Digital Voice File
File extension DVG	Graphic Works Vector Graphic
File extension DVI	Device Independent Format File
File extension DVL	Virtual Library File
File extension DVR	Microsoft Recorded TV Show
File extension DVR-MS	Microsoft Digital Video Recording
File extension DVX	DivX Video File
File extension DW	David Whittaker Audio File
File extension DWA	Digital Waveform Archiver Audio File
File extension DWC	Emulex DWC Firmware Update File
File extension DWD	DiamondWare Digital Audio File
File extension DWDOC	DrawWell Document
File extension DWF	Design Web Format File
File extension DWFX	Design Web Format XPS File
File extension DWG	AutoCAD Drawing Database File
File extension DWI	Dance With Intensity Song File
File extension DWL	TurboCAD Drawing Lock File
File extension DWLIBRARY	Paperless Document Library
File extension DWN	FrameWork database file
File extension DWP	DarkWave Studio Project File
File extension DWS	AutoCAD Drawing Standards File
File extension DWT	Dreamweaver Web Page Template
File extension DWZ	Compressed AutoCAD drawing file
File extension DX	DEC WPS Plus File
File extension DXB	Drawing Exchange Binary
File extension DXE	AutoCAD Data Extraction Template
File extension DXF	Drawing Exchange Format File
File extension DXL	Domino XML Language File
File extension DXLS	DashXL Skin Set File
File extension DXP	CDBurnerXP Data Compilation File
File extension DXR	Protected Macromedia Director Movie
File extension DXS	Deus Ex Saved Game
File extension DXX	AutoCAD Drawing Interchange Attribute File
File extension DYC	Xerox Printer Driver Configuration File
File extension DYLIB	Mach-O Dynamic Library
File extension DZ	Dzip File
File extension DZIP	The Witcher 2 Game Archive
File extension DZM	DirectorZone Menu Template
File extension DZP	DirectorZone Particle Effect File
File extension DZT	DirectorZone Title File