.D3D | YoYo Games | 3D-kuvatiedostot | Game Maker 3D File | Microsoft DirectX | Microsoft Corporation |
.DA2 | Microsoft Corporation | Videotiedostot | Windows Dancer File | Windows Media Center | Microsoft Corporation |
.DAP | SpeedBit | Harvinaiset Tiedostot | Download Accelerator Plus Partial Download | Microsoft Access | Microsoft Corporation |
.DAT | Unknown Developer | Pelitiedostot | Game Data | Internet Explorer | Microsoft Corporation |
.DATA | Appricon | Datatiedostot | Analysis Studio Offline Data | Microsoft Excel | Microsoft Corporation |
.DATASOURCE | Microsoft Corporation | Harvinaiset Tiedostot | Microsoft Visual Studio Data Source | Microsoft Visual Studio | Microsoft Corporation |
.DAVMOUNT | Microsoft Corporation | Järjestelmätiedostot | Windows Based Script Host | Microsoft Windows | Microsoft Corporation |
.DB | Dwayne Richard Hipp | Tietokantatiedostot | Mobile Device Database File | Microsoft Excel | Microsoft Corporation |
.DB-JOURNAL | Sublime HQ Pty Ltd | Tietokantatiedostot | SQLite Rollback Journal File | Microsoft Notepad | Microsoft Corporation |
.DBA | PDC (Prolog Development Center) | Tietokantatiedostot | Turbo Prolog Database | Microsoft Notepad | Microsoft Corporation |
.DBC | Microsoft Corporation | Tietokantatiedostot | FoxPro Database File | Microsoft Visual FoxPro | Microsoft Corporation |
.DBE | Microsoft Corporation | Varmuuskopiointitiedostot | ActiveSync Backup File Format | Microsoft ActiveSync | Microsoft Corporation |
.DBF | dBase, LLC | Tietokantatiedostot | Database File | Microsoft Excel | Microsoft Corporation |
.DBG | Microsoft Corporation | Asetustiedostot | Visual FoxPro Debugger Configuration File | Microsoft Visual FoxPro | Microsoft Corporation |
.DBL | Microsoft Corporation | Järjestelmätiedostot | Microsoft Windows XP Product Activation Data | Windows XP | Microsoft Corporation |
.DBM | Adobe Systems Incorporated | Web-tiedostot | ColdFusion Server File | Internet Explorer | Microsoft Corporation |
.DBML | Microsoft Corporation | Sovelluskehittäjän tiedostot | Visual Studio OR Design File | Microsoft Visual Studio | Microsoft Corporation |
.DBP | Microsoft Corporation | Sovelluskehittäjän tiedostot | Microsoft Visual Studio Visual C++ Database Project | Microsoft Notepad | Microsoft Corporation |
.DBT | Abacus Data Systems | Datatiedostot | AbacusLaw Data File | Microsoft Visual FoxPro | Microsoft Corporation |
.DBX | Microsoft Corporation | Harvinaiset Tiedostot | Outlook Express E-mail Folder | Microsoft Outlook Express | Microsoft Corporation |
.DCM | National Electrical Manufacturers Association (NEMA) | Rasterikuvatiedostot | DICOM Image File Format | ACD Systems Canvas | Microsoft Corporation |
.DCT | Microsoft Corporation | Datatiedostot | Dictionary File | Virtual PC 2007 | Microsoft Corporation |
.DCTX | Microsoft Corporation | Datatiedostot | Microsoft Office IME Open Extended Dictionary | Microsoft Office | Microsoft Corporation |
.DCTXC | Microsoft Corporation | Datatiedostot | Microsoft Office IME Open Extended Dictionary File | Microsoft Office | Microsoft Corporation |
.DCX | ZSoft Corporation | Rasterikuvatiedostot | Zsoft Multi-Page Paintbrush File | Microsoft Visual FoxPro | Microsoft Corporation |
.DD | Sage | Datatiedostot | Sage MAS 90 Data File | Microsoft Visual Studio | Microsoft Corporation |
.DDE | ABBYY | Datatiedostot | File TypeLingvo Dictionary Error Log File | Microsoft Windows | Microsoft Corporation |
.DDF | Microsoft Corporation | Asetustiedostot | Diamond Directive File | Microsoft Notepad | Microsoft Corporation |
.DEC | Various Developers | Sovelluskehittäjän tiedostot | Declaration File | Microsoft Notepad | Microsoft Corporation |
.DEF | Microsoft Corporation | Sovelluskehittäjän tiedostot | Module Definition File | Microsoft Visual Studio | Microsoft Corporation |
.DEP | Microsoft Corporation | Sovelluskehittäjän tiedostot | Windows Dependency File | Microsoft Windows | Microsoft Corporation |
.DER | Mozilla | Web-tiedostot | DER Certificate File | Internet Explorer | Microsoft Corporation |
.DESIGN | Microsoft Corporation | Vektorikuvatiedostot | Microsoft Expression Design Drawing | Microsoft Expression Studio | Microsoft Corporation |
.DESKLINK | Microsoft Corporation | Järjestelmätiedostot | Desktop Shortcut | Microsoft Windows | Microsoft Corporation |
.DESKTHEMEPACK | Microsoft Corporation | Järjestelmätiedostot | Microsoft Windows Theme Pack | Microsoft Windows 8 | Microsoft Corporation |
.DEV | Bloodshed Software | Sovelluskehittäjän tiedostot | Dev-C++ Project File | Microsoft Windows | Microsoft Corporation |
.DEVICEMANIFEST-MS | Microsoft Corporation | Järjestelmätiedostot | Microsoft Windows Device Metadata | Microsoft Windows | Microsoft Corporation |
.DEVICEMETADATA-MS | Microsoft Corporation | Järjestelmätiedostot | Device Metadata Package | Microsoft Windows | Microsoft Corporation |
.DGML | Microsoft Corporation | Sovelluskehittäjän tiedostot | Visual Studio Directed Graph Document | Microsoft Visual Studio | Microsoft Corporation |
.DGSL | Microsoft Corporation | Sovelluskehittäjän tiedostot | Microsoft Visual Studio Visual Shader Graph File | Microsoft Visual Studio | Microsoft Corporation |
.DGT | Interscape | Datatiedostot | Digital Gallery File | Microsoft Paint | Microsoft Corporation |
.DIA | Spacetornado Software | Tietokantatiedostot | Do It Again Task File | Microsoft SharePoint Server | Microsoft Corporation |
.DIAGCAB | Microsoft Corporation | Järjestelmätiedostot | Troubleshooting Pack Cabinet File | Microsoft Windows | Microsoft Corporation |
.DIAGCFG | Microsoft Corporation | Järjestelmätiedostot | Troubleshooting Pack Configuration File | Microsoft Support Diagnostic Tool | Microsoft Corporation |
.DIAGPKG | Microsoft Corporation | Järjestelmätiedostot | Troubleshooting Pack File | Microsoft Support Diagnostic Tool | Microsoft Corporation |
.DIAGSESSION | Microsoft Corporation | Sovelluskehittäjän tiedostot | Diagnostics Session File | Internet Explorer | Microsoft Corporation |
.DIB | The GIMP Development Team | Rasterikuvatiedostot | Device Independent Bitmap File | Microsoft Windows Photos | Microsoft Corporation |
.DICPROOF | Microsoft Corporation | Asetustiedostot | Microsoft Dictionary Proofing File | Microsoft Excel | Microsoft Corporation |
.DICT | Microsoft Corporation | Datatiedostot | Dictionary File | Virtual PC 2007 | Microsoft Corporation |
.DIF | Microsoft Corporation | Datatiedostot | Data Interchange Format | Microsoft Excel | Microsoft Corporation |
.DIP | Microsoft Corporation | Graafiset Tiedostot | Windows Bitmap Format | Microsoft Windows | Microsoft Corporation |
.DISCO | Microsoft Corporation | Web-tiedostot | DISCO Discovery Document | Microsoft Visual Studio | Microsoft Corporation |
.DISPOSITION-NOTIFICATION | Microsoft Corporation | Web-tiedostot | Message Disposition Notification | Microsoft Outlook | Microsoft Corporation |
.DIT | Microsoft Corporation | Järjestelmätiedostot | Active Directory Information Tree File | Microsoft Active Directory | Microsoft Corporation |
.DIZ | Unknown Developer | Tekstitiedostot | Description In Zip File | Microsoft Notepad | Microsoft Corporation |
.DJVU | LizardTech | Rasterikuvatiedostot | DjVu Image | ACD Systems Canvas | Microsoft Corporation |
.DL | Microsoft Corporation | Pelitiedostot | Zoo Tycoon 2 Data File | Zoo Tycoon 2 | Microsoft Corporation |
.DLG | Crytek | Pelitiedostot | Crysis Dialogue Data File | Microsoft Windows | Microsoft Corporation |
.DLL | Microsoft Corporation | Järjestelmätiedostot | Dynamic Link Library | Microsoft Visual FoxPro | Microsoft Corporation |
.DLX | DIAL | CAD-tiedostot | DIALux Document | Microsoft Visual Studio | Microsoft Corporation |
.DL_ | Microsoft Corporation | Pakatut tiedostot | Compressed DLL File | Microsoft Makecab | Microsoft Corporation |
.DMB | BYOND | Pelitiedostot | BYOND Game Executable | Microsoft Windows Media Player | Microsoft Corporation |
.DMK | Various Developers | 3D-kuvatiedostot | Digimask File | Microsoft XBOX | Microsoft Corporation |
.DML | Sybase, Inc | Web-tiedostot | DynaScript File | Internet Explorer | Microsoft Corporation |
.DMP | Microsoft Corporation | Järjestelmätiedostot | Windows Memory Dump File | Microsoft Visual Studio | Microsoft Corporation |
.DMX | Valve | Videotiedostot | Source Filmmaker Project File | Microsoft SQL Server | Microsoft Corporation |
.DNC | Microsoft Corporation | Videotiedostot | Windows Dancer File | Windows Media Center | Microsoft Corporation |
.DNG | Adobe Systems Incorporated | Kameran Raakatiedostot | Digital Negative Image File | Microsoft Windows Photos | Microsoft Corporation |
.DO | Unknown Developer | Web-tiedostot | Java Servlet | Internet Explorer | Microsoft Corporation |
.DOB | Sublime HQ Pty Ltd | Sovelluskehittäjän tiedostot | Visual Basic UserDocument | Microsoft Visual Studio | Microsoft Corporation |
.DOC | Microsoft Corporation | Tekstitiedostot | Microsoft Word Document (before The 2007 Version) | Microsoft Word | Microsoft Corporation |
.DOCM | Microsoft Corporation | Tekstitiedostot | Word Open XML Macro-Enabled Document | Microsoft Word | Microsoft Corporation |
.DOCMHTML | Microsoft Corporation | Web-tiedostot | Microsoft Word MIME HTML Document | Microsoft Word | Microsoft Corporation |
.DOCX | Microsoft Corporation | Tekstitiedostot | Microsoft Word Open XML Document | Microsoft Word | Microsoft Corporation |
.DOCXML | Microsoft Corporation | Tekstitiedostot | Microsoft Word XML Document | Microsoft Word 2016 | Microsoft Corporation |
.DOK | Nenad Hrg | Asetustiedostot | DesktopOK Icons Layout File | Microsoft Notepad | Microsoft Corporation |
.DOT | Microsoft Corporation | Sivun asettelutiedostot | Word Document Template | Microsoft Word | Microsoft Corporation |
.DOTHTML | Microsoft Corporation | Web-tiedostot | Microsoft Word HTML Document Template | Microsoft Word | Microsoft Corporation |
.DOTM | Microsoft Corporation | Sivun asettelutiedostot | Word 2007 XML Macro-Enabled Template | Microsoft Word 2016 | Microsoft Corporation |
.DOTX | Microsoft Corporation | Sivun asettelutiedostot | Word 2007 XML Template | Microsoft Word 2016 | Microsoft Corporation |
.DOWNLOADHOST | Microsoft Corporation | Asetustiedostot | MSN Explorer Download View | MSN Explorer | Microsoft Corporation |
.DOX | Microsoft Corporation | Sovelluskehittäjän tiedostot | Visual Basic Binary UserDocument | Microsoft Visual Studio | Microsoft Corporation |
.DP | Stefan Hagel | Tekstitiedostot | Text Document | Microsoft Notepad | Microsoft Corporation |
.DPB | Susteen, Inc. | Varmuuskopiointitiedostot | DataPilot Backup File | Microsoft Windows | Microsoft Corporation |
.DPC | Microsoft Corporation | Datatiedostot | Microsoft Office Resource File | Microsoft Office | Microsoft Corporation |
.DPK | Embarcadero Technologies | Sovelluskehittäjän tiedostot | Delphi Package | Microsoft Windows | Microsoft Corporation |
.DQY | Microsoft Corporation | Tietokantatiedostot | Excel Query File | Microsoft Excel | Microsoft Corporation |
.DRC | Open Source | Harvinaiset Tiedostot | Open Mobile Alliance DRM Rights Object | Microsoft Notepad | Microsoft Corporation |
.DRI | Microsoft Corporation | Tietokantatiedostot | Microsoft SQL Server Replication File | Microsoft SQL Server | Microsoft Corporation |
.DRV | Microsoft Corporation | Järjestelmätiedostot | Device Driver | Microsoft Windows | Microsoft Corporation |
.DRW | Corel | Vektorikuvatiedostot | DESIGNER Drawing | ACD Systems Canvas | Microsoft Corporation |
.DS | DAZ 3D | 3D-kuvatiedostot | DAZ Studio 1/2 Script | Microsoft SQL Server | Microsoft Corporation |
.DSC | Kingsoft | Asetustiedostot | Kingsoft Design Science Equation File | Microsoft Notepad | Microsoft Corporation |
.DSHADER | Microsoft Corporation | Datatiedostot | Microsoft Visual Studio Text Data | Microsoft Visual Studio | Microsoft Corporation |
.DSL | ABBYY | Datatiedostot | Lingvo Dictionary Data File | Microsoft Visual Studio | Microsoft Corporation |
.DSN | Cadence Design Systems | CAD-tiedostot | OrCAD Design File | Microsoft ODBC Data Source Administrator | Microsoft Corporation |
.DSO | Microsoft Corporation | Tekstitiedostot | Microsoft Visual Studio Workspace Data | Microsoft Visual Studio | Microsoft Corporation |
.DSP | Open Source | Äänitiedostot | Dynamic Studio Professional Module | Microsoft Visual Studio | Microsoft Corporation |
.DSR | Activision | Pelitiedostot | Modern Warfare 3 Dedicated Server Recipe File | Microsoft Visual Basic | Microsoft Corporation |
.DSS | The International Voice Association (IVA) | Äänitiedostot | Digital Speech Standard File | Microsoft Windows | Microsoft Corporation |