.DSW | Microsoft Corporation | Settings Files | Microsoft Visual Studio Workspace | Microsoft Visual Studio | Microsoft Corporation |
.DSX | DAZ 3D | Settings Files | DAZ Studio XML File | Microsoft Visual Basic | Microsoft Corporation |
.DT2 | Microsoft Corporation | Raster Image Files | Windows Live Messenger Emoticon Image File | Microsoft Windows Live Messenger | Microsoft Corporation |
.DTC | Microsoft Corporation | Data Files | Windows Application Log File | Microsoft Windows Millenium Edition | Microsoft Corporation |
.DTCP-IP | Microsoft Corporation | Video Files | Microsoft Windows Movie Maker Video | Microsoft Windows Live Movie Maker | Microsoft Corporation |
.DTD | Syncro Soft | Developer Files | Document Type Definition File | Microsoft Notepad | Microsoft Corporation |
.DTH | Microsoft Corporation | Data Files | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.DTI | Microsoft Corporation | Data Files | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.DTS | CyberLink | Audio Files | DTS Encoded Audio File | Microsoft SQL Server | Microsoft Corporation |
.DUMP | Microsoft Corporation | System Files | Dump File | Microsoft Windows | Microsoft Corporation |
.DUN | Trendy Entertainment | Game Files | Dungeon Defenders Saved Game File | Microsoft Dial-Up Networking | Microsoft Corporation |
.DUP | Microsoft Corporation | Settings Files | Microsoft Windows DUA Polling Reconfiguration Data | Microsoft Windows | Microsoft Corporation |
.DUT | Microsoft Corporation | Data Files | Dutch Localization Language | Microsoft Notepad | Microsoft Corporation |
.DV | Roxio | Video Files | Digital Video File | Microsoft Windows Live Movie Maker | Microsoft Corporation |
.DVD | Unknown Developer | System Files | DOS Device Driver | MS-DOS | Microsoft Corporation |
.DVF | Sony | Audio Files | Sony Digital Voice File | Microsoft Windows Media Player | Microsoft Corporation |
.DVR | Microsoft Corporation | Video Files | Microsoft Recorded TV Show | Microsoft Windows Media Player | Microsoft Corporation |
.DVR-MS | Microsoft Corporation | Video Files | Microsoft Digital Video Recording | Microsoft Windows Media Player | Microsoft Corporation |
.DWF | Autodesk, Inc. | 3D Image Files | Autodesk Design Web Format File | ACD Systems Canvas | Microsoft Corporation |
.DWFX | Autodesk, Inc. | CAD Files | Design Web Format XPS File | Microsoft XPS Viewer | Microsoft Corporation |
.DWG | Autodesk, Inc. | CAD Files | AutoCAD Drawing Database File | ACD Systems Canvas | Microsoft Corporation |
.DX | Digital Equipment Corporation | Text Files | DEC WPS Plus File | Microsoft Notepad | Microsoft Corporation |
.DXF | Autodesk, Inc. | CAD Files | Drawing Exchange Format | ACD Systems Canvas | Microsoft Corporation |
.DXL | IBM | Database Files | Domino XML Language File | Microsoft Notepad | Microsoft Corporation |
.DZC | Microsoft Corporation | Data Files | Photosynth Deep Zoom Collection | Microsoft PhotoSynth | Microsoft Corporation |
.DZI | Microsoft Corporation | Raster Image Files | PhotoSynth Deep Zoom Image File | Microsoft PhotoSynth | Microsoft Corporation |