| .uccapilog |
Microsoft UCC API Log File |
| .uls |
NetMeeting User Location Service File |
| .udb |
Dynamics AX User Database File |
| .udcx |
Universal Data Connection File |
| .udl |
Microsoft Universal Data Link File |
| .user |
Visual Studio Project User Options File |
| .udf |
Universal Disk Format File |
| .uce |
Windows UCE System File |
| .usertile-ms |
Windows 8 User Tile File |
| .vb |
Visual Basic Project Item File |
| .vcxproj |
Visual C++ Project |
| .vsd |
Visio Drawing File |
| .vbs |
VBScript File |
| .vcproj |
Visual C++ Project File |
| .vdproj |
Visual Studio Setup and Deployment Project |
| .vhd |
Virtual PC Virtual Hard Disk |
| .vst |
VST Audio Plugin |
| .vdx |
Visio Drawing XML File |
| .vbproj |
Visual Studio Visual Basic Project |
| .vmc |
Windows Virtual Machine Configuration File |
| .vsdx |
Visio Drawing |
| .vbx |
Visual Basic Custom Control |
| .vc4 |
Virtual CD Disc Image |
| .vbp |
Visual Basic Project File |