Saturday, 1 February 2014

File types with extensions that start with the letter U

File ExtentionFile Type Description
.uAudioAU Audio File
.uGameUnreal Tournament Class Package
.uRaster ImageSubsampled Raw YUV Image
.u10DataUFile 2010 Tax Return
.u11DataUFile 2011 Tax Return
.u12DataUFile 2012 Tax Return
.u3d3D ImageUniversal 3D File
.u3iTextU3 Application Information File
.u3pExecutableU3 Smart Application
.u8Audio3D Lemmings Audio File
.uaxAudioUnreal Audio Package
.ubAudioUnsigned Byte Audio File
.ubjDataUniversal Binary JSON File
.uboxDataUniverse Sandbox Data File
.ucGameUnrealScript Class
.uc2CompressedUltraCompressor 2 Archive
.uccapilogDataMicrosoft UCC API Log File
.uceSystemWindows UCE System File
.ucfWebWebEx Media File
.uciBackupUFS Explorer Backup File
.uclGameKilling Floor System File
.ucmGameCrazy Machines Model File
.uctSettingsUC Browser Theme File
.udDataOmniPage User Dictionary
.udbDatabaseDynamics AX User Database File
.udcDataAdobe InDesign User Dictionary
.udcxSettingsUniversal Data Connection File
.udebDataDebian Package File
.udfExecutableExcel User Defined Function
.udfDisk ImageUniversal Disk Format File
.udkGameUnreal Engine Map File
.udlDatabaseMicrosoft Universal Data Link File
.udsMiscNetBackup UNIX Domain Socket File
.udsDataSierra Generations File
.udsDataUniform Data System File
.ueaEncodedProtector Suite QL Encrypted Archive
.ufoRaster ImageUlead File Object
.ufrVector ImageUltra Fractal File
.ufsDisk ImageFreeBSD Unix File System File
.ufs.uzipCompressedCompressed Unix File System File
.ugaRaster ImageUlead GIF Animator File
.uhaCompressedUHarc Compressed Archive
.uhtmlWebUC Browser Saved Webpage
.uiDeveloperUser Interface File
.uibakDisk ImageUltraISO Backup Disk Image
.uifDisk ImageUniversal Image Format Disc Image
.uisSettingsWindowBlinds User Interface Specification
.ukxGameUnreal Animation Package
.ulawAudioRaw u-Law Audio File
.ulfDataUniversal List File
.ulsMiscNetMeeting User Location Service File
.ultAudioUltraTracker Module
.ulwAudiou-Law Audio File
.ulzDataUSBlyzer Data Capture File
.umdGameSplinter Cell Blacklist Game Data File
.umfDataMediaHolder Universal Media Format File
.umlDeveloperUML Data Object Model
.umlclassDeveloperUML Class Model
.umodGameUnreal Tournament Module File
.ums3D ImageRune 3D Mesh File
.umxGameUnreal Music Package
.unauthTextSiteMinder Unauthorized Message File
.uniAudioMikMod UniMOD Module
.unityGameUnity Scene File
.unity3dGameUnity Web Player File
.unitypackageDataUnity Package File
.unityprojGameUnity 3D Project
.unkMiscUnknown File
.unknownMiscUnknown File Type
.unlMiscGarmin Unlock File
.unrGameUnreal Level Map
.untCADAutoCAD Unit Definition File
.unxTextUnix Text File
.uofTextUniform Office Document
.uopDataUniform Office Presentation
.uopGameUltima Online Patch File
.uosSpreadsheetUniform Office Spreadsheet
.uotTextUniform Office Document
.updTextProgram Update Information
.updateDataISAPI Update File
.updatrGameiConomy Update File
.upfCADUnified Power Format File
.upfSettingsMicroStation User Preferences File
.upgMiscUpgrade File
.upkGameUnreal Engine 3 Package
.upoiDataiGO Points of Interest File
.uprDataFileMaker User Dictionary
.uprDataFractal Parameters File
.upxExecutableUltimate Packer for eXecutables File
.uqmGameThe Ur-Quan Masters Game Data File
.urlWebInternet Shortcut
.urrMiscUniface Signatures File
.urtRaster ImageUtah Raster Toolkit File
.usaGameUnreal Saved Game File
.useqDataUSeq Genome Data File
.userSettingsVisual Studio Project User Options File
.userprofileSettingsNorton Antivirus User Profile File
.usertile-msRaster ImageWindows 8 User Tile File
.usfSettingsEVGA Precision X Skin File
.usfVideoUniversal Subtitles Format File
.usfAudioNintendo 64 Music File
.usflibAudioNintendo 64 Song Library
.usmVideoUSM Game Video File
.usrDataSmartMusic Custom File
.usrDatabaseFileMaker Pro Database File
.ustAudioUTAU Sequence Text File
.ustarDataUniform Standard Tape Archive Format File
.usxGameUnreal Static Meshes
.ut2GameUnreal Tournament Map
.ut2modGameUnreal Tournament 2003/2004 Module File
.ut3GameUnreal Tournament 3 Map File
.ut4modGameUnreal Tournament 2004 Module
.ut8GameGhost Master Language File
.utcGameBioware Creature File
.utf8TextUnicode UTF8-Encoded Text Document
.utwGameUnity Whirld File
.utxGameUnreal Texture Package
.utxtTextUnicode Text File
.utzSettingsUIQ Theme Package
.uuEncodedUuencoded File
.uudEncodedUUDecoded File
.uueEncodedUuencoded File
.uvfDataUncertain Value Format
.uvwDataUVW Coordinates File
.uvxGameUnreal Tournament 2003 Saved Game
.uwAudioUnsigned Word Audio File
.uwfAudioUltraTracker Wave File
.uwlDataUser Word List File
.uxxGameUnreal Tournament Cache
.uzipCompressedFreeBSD Compressed Disk Image