| File Extensions |
Description |
M |
A |
Modified |
Index |
| U | Subsampled Raw YUV Bitmap | . | L | 2.00.00 | 1170 |
| U98 | USA 98: Streets & Destination Tour | . | M | 1.05.00 | 398 |
| U?? | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UAE | WinUAE Game Configuration | . | M | 2.07.00 | 1509 |
| UAX | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UC2 | UltraCompressor II compressed archive | . | M | 2.14.00 | 1643 |
| UCE | Unicode Extensions | . | M | 2.20.00 | 1190 |
| UCF | WebEx Universal Communications Data | . | M | 2.21.00 | 3025 |
| UCT | Sybase Translation Table | . | M | 2.23.00 | 3305 |
| UDD | OllyDbg Module Information | . | M | 2.11.00 | 2068 |
| UDF | X-ray Diffraction Data | . | M | 2.17.00 | 1104 |
| UDI | Corel Draw Script Texture | . | M | 2.07.00 | 1404 |
| UEF | Unified Emulator Format | . | M | 2.10.00 | 1844 |
| UEZ | Cool 3D Image | . | M | 2.11.00 | 2069 |
| UFA | UFA Compressed Archive | . | M | 2.07.00 | 1438 |
| UFM | Unicode Font Metrics | . | M | 2.13.00 | 2161 |
| UFO | PhotoImpact Graphic Image | Y | H | 2.17.00 | 2205 |
| UHA | UHArc Compressed Archive | . | M | 2.28.00 | 484 |
| UHS | Universal Hint System File | . | M | 2.11.00 | 2070 |
| UIL | Motif Icon File | . | L | 2.00.00 | 1105 |
| UKX | Unreal Game Archive | . | M | 2.15.00 | 382 |
| ULAW | US Telephony Audio File | . | L | 2.00.00 | 1106 |
| ULK | MS Windows Internet Shortcut | . | M | 2.00.00 | 140 |
| ULT | Ultra Tracker Module Music | . | M | 2.17.00 | 1107 |
| ULX | Glulx Game Data | . | M | 2.24.00 | 3356 |
| ULX | Glulx Game Data (MacBinary) | . | M | 2.24.00 | 3357 |
| UMX | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UNI | APlayer Module Music | . | M | 2.17.00 | 2584 |
| UNI | Mikmod Module Music | . | M | 2.17.00 | 2585 |
| UNITYWEB | Unity3d Environment | . | M | 2.16.00 | 486 |
| Unn | PC64 Native File | . | M | 2.08.00 | 1599 |
| UNR | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UOL | PhotoImpact Presets/Clipart Images | . | M | 2.11.00 | 395 |
| UPDATE | AddWeb Update | . | M | 2.06.00 | 1317 |
| UPM | McAfee VirusScan Update | . | M | 2.28.00 | 2092 |
| URL | MS Internet Explorer Shortcut (MacBinary) | . | M | 2.09.00 | 1776 |
| URL | MS Windows Internet Shortcut | . | M | 2.00.00 | 140 |
| URT | Utah Raster Toolkit Image | Y | M | 2.25.00 | 210 |
| US? | MS Word for DOS/WordPerfect Font | . | M | 1.00.00 | 120 |
| USE | MKS Source Integrity File | . | L | 2.00.00 | 1108 |
| USER | MS C#.NET Project | . | M | 2.23.00 | 554 |
| USER | MS Visual Basic.NET Project | . | M | 2.13.00 | 679 |
| USER | MS Visual C++.NET Project | . | H | 2.13.00 | 2183 |
| USER | MS Visual Studio.NET Project | . | M | 2.29.01 | 552 |
| USERPROFILE | Norton AntiVirus Live Update Profile | . | M | 2.14.00 | 2218 |
| USERPROFILE | Norton AntiVirus Update Session | . | M | 2.14.00 | 2217 |
| USR | Corel PhotoPaint User Defined Filter | . | M | 2.07.00 | 1405 |
| USS | WinUAE Saved State | . | M | 2.11.00 | 2071 |
| UST | Sybase Translation Table | . | M | 2.23.00 | 3305 |
| USX | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UTF | Unicode Type Font | . | M | 2.13.00 | 2182 |
| UTX | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UU | UU-Encoded File | Y | H | 2.34.00 | 1109 |
| UUE | UU-Encoded File | Y | H | 2.34.00 | 1109 |
| UVX | Unreal Game Archive | . | M | 2.15.00 | 382 |
| UWF | UltraTracker Wave Audio | . | M | 2.27.00 | 1110 |
| UWL | GroupWise User Word List | . | M | 2.19.03 | 2836 |
