.U | Unreal Tournament Class Package | 234 |
.U | AU Audio File | 267 |
.U | Subsampled Raw YUV Image | 329 |
.U10 | UFile 2010 Tax Return | 233 |
.U11 | UFile 2011 Tax Return | 267 |
.U12 | UFile 2012 Tax Return | 300 |
.U3D | Universal 3D File | 273 |
.U3I | U3 Application Information File | 267 |
.U3P | U3 Smart Application | 217 |
.U8 | 3D Lemmings Audio File | 229 |
.U8 | Mario Kart Wii Archive | 167 |
.UASSET | Unreal Asset File | 187 |
.UAX | Unreal Audio Package | 229 |
.UB | Unsigned Byte Audio File | 400 |
.UBJ | Universal Binary JSON File | 275 |
.UBOX | Universe Sandbox Data File | 250 |
.UBZ | OpenBoard Document | 400 |
.UC | UnrealScript Class | 216 |
.UC2 | UltraCompressor 2 Archive | 300 |
.UCCAPILOG | Microsoft UCC API Log File | 237 |
.UCE | Windows UCE System File | 300 |
.UCF | WebEx Media File | 277 |
.UCI | UFS Explorer Backup File | 300 |
.UCL | Killing Floor System File | 300 |
.UCM | Crazy Machines Model File | 500 |
.UCT | UC Browser Theme File | 200 |
.UD | OmniPage User Dictionary | 400 |
.UDB | Dynamics AX User Database File | 270 |
.UDC | Adobe InDesign User Dictionary | 400 |
.UDCX | Universal Data Connection File | 175 |
.UDEB | Debian Package File | 375 |
.UDF | Excel User Defined Function | 300 |
.UDF | Universal Disk Format File | 284 |
.UDK | Unreal Engine Map File | 237 |
.UDL | Microsoft Universal Data Link File | 200 |
.UDS | Sierra Generations File | 380 |
.UDS | Uniform Data System File | 500 |
.UDS | NetBackup UNIX Domain Socket File | 367 |
.UEA | Protector Suite QL Encrypted Archive | 400 |
.UF2 | USB Flashing Format | 300 |
.UFO | Ulead File Object | 267 |
.UFO | Unified Font Object File | 400 |
.UFR | Upfiring File | 250 |
.UFR | Ultra Fractal File | 350 |
.UFS | FreeBSD Unix File System File | 460 |
.UFS.UZIP | Compressed Unix File System File | 200 |
.UFT | Torque Font Cache File | 275 |
.UGA | Ulead GIF Animator File | 350 |
.UGOIRA | Ugoira Animated Image File | 325 |
.UGR | Apophysis Ultra Fractal Gradient File | 275 |
.UHA | UHarc Compressed Archive | 196 |
.UHTML | UC Browser Saved Webpage | 256 |
.UI | User Interface File | 222 |
.UIBAK | UltraISO Backup Disk Image | 220 |
.UIF | Universal Image Format Disc Image | 250 |
.UIS | WindowBlinds User Interface Specification | 200 |
.UKX | Unreal Animation Package | 257 |
.ULAW | Raw u-Law Audio File | 300 |
.ULD | Unified Luminaire Data File | 267 |
.ULF | Universal List File | 300 |
.ULP | EAGLE User Language Program | 167 |
.ULS | NetMeeting User Location Service File | 333 |
.ULT | UltraTracker Module | 350 |
.ULW | u-Law Audio File | 467 |
.ULX | Glulx Game File | 450 |
.ULZ | USBlyzer Data Capture File | 380 |
.UMAP | Unreal Engine Map File | 210 |
.UMD | Splinter Cell Blacklist Game Data File | 267 |
.UMF | MediaHolder Universal Media Format File | 400 |
.UML | UML Data Object Model | 277 |
.UMLCLASS | UML Class Model | 400 |
.UMOD | Unreal Tournament Module File | 333 |
.UMS | Rune 3D Mesh File | 250 |
.UMX | Unreal Music Package | 136 |
.UNAUTH | SiteMinder Unauthorized Message File | 325 |
.UNF | UNIF ROM File | 275 |
.UNI | MikMod UniMOD Module | 200 |
.UNIF | UNIF ROM File | 400 |
.UNITY | Unity Scene File | 155 |
.UNITY3D | Unity Web Player Archive | 157 |
.UNITYPACKAGE | Unity Package File | 177 |
.UNITYPROJ | Unity 3D Project | 250 |
.UNK | Unknown File | 392 |
.UNKNOWN | Unknown File Type | 194 |
.UNL | Garmin Unlock File | 236 |
.UNR | Unreal Level Map | 171 |
.UNT | AutoCAD Unit Definition File | 400 |
.UNX | Unix Text File | 400 |
.UOF | Uniform Office Document | 400 |
.UOP | Uniform Office Presentation | 400 |
.UOP | Ultima Online Patch File | 400 |
.UOS | Uniform Office Spreadsheet | 400 |
.UOT | Uniform Office Document | 333 |
.UPD | Program Update Information | 213 |
.UPDATE | ISAPI Update File | 182 |
.UPDATR | iConomy Update File | 286 |
.UPF | MicroStation User Preferences File | 290 |
.UPF | Unified Power Format File | 450 |
.UPF | Panono Unstitched Panorama Format | 400 |
.UPG | Upgrade File | 288 |
.UPK | Unreal Engine 3 Package | 174 |
.UPOI | iGO Points of Interest File | 250 |
.UPR | Fractal Parameters File | 400 |
.UPR | FileMaker User Dictionary | 450 |
.UPS | UPS Patch File | 280 |
.UPX | Ultimate Packer for eXecutables File | 333 |
.UQM | The Ur-Quan Masters Game Data File | 500 |
.URCL | URCL Assembly Source Code File | 171 |
.URL | Internet Shortcut | 218 |
.URR | Uniface Signatures File | 500 |
.URT | Utah Raster Toolkit File | 500 |
.USA | Unreal Saved Game File | 217 |
.USD | Universal Scene Description Format | 300 |
.USDZ | Universal Scene Description Zipped Format | 250 |
.USEQ | USeq Genome Data File | 400 |
.USER | Visual Studio Project User Options File | 206 |
.USERPROFILE | Norton AntiVirus User Profile File | 300 |
.USERTILE-MS | Windows 8 User Tile File | 200 |
.USF | Nintendo 64 Music File | 320 |
.USF | EVGA Precision X Skin File | 287 |
.USF | Universal Subtitles Format File | 350 |
.USFLIB | Nintendo 64 Song Library | 350 |
.USM | USM Game Video File | 225 |
.USR | FileMaker Pro Database File | 222 |
.USR | SmartMusic Custom File | 235 |
.USR | Lowrance GPS Data File | 283 |
.UST | UTAU Sequence Text File | 200 |
.USTAR | Uniform Standard Tape Archive Format File | 500 |
.USX | Unreal Static Meshes | 150 |
.UT2 | Unreal Tournament Map | 433 |
.UT2MOD | Unreal Tournament 2003/2004 Module File | 333 |
.UT3 | Unreal Tournament 3 Map File | 260 |
.UT4MOD | Unreal Tournament 2004 Module | 200 |
.UT8 | Ghost Master Language File | 300 |
.UTC | Bioware Creature File | 280 |
.UTF8 | Unicode UTF8-Encoded Text Document | 260 |
.UTM | UTM Virtual Machine | 350 |
.UTW | Unity Whirld File | 400 |
.UTX | Unreal Texture Package | 193 |
.UTXT | Unicode Text File | 375 |
.UTZ | UIQ Theme Package | 250 |
.UU | Uuencoded File | 247 |
.UUD | UUDecoded File | 333 |
.UUE | Uuencoded File | 231 |
.UVF | Uncertain Value Format | 200 |
.UVM | UnitVM Executable File | 400 |
.UVW | UVW Coordinates File | 233 |
.UVX | Unreal Tournament 2003 Saved Game | 433 |
.UW | Unsigned Word Audio File | 225 |
.UWF | UltraTracker Wave File | 275 |
.UWL | User Word List File | 200 |
.UWRF | Universal Web Radio File | 250 |
.UXF | UML eXchange Format | 220 |
.UXX | Unreal Tournament Cache | 235 |
.UZED | Zipped Unicode GEDCOM Genealogy File | 300 |
.UZIP | FreeBSD Compressed Disk Image | 350 |