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U File Extensions

File Extension File Type Popularity
.UUEUuencoded File
.U3DUniversal 3D File
.UCCAPILOGMicrosoft UCC API Log File
.UCFWebEx Media File
.UWLUser Word List File
.UNITYUnity Scene File
.UNITY3DUnity Web Player File
.UPKUnreal Engine 3 Package
.UTZUIQ Theme Package
.UDKUnreal Engine Map File
.U10UFile 2010 Tax Return
.USRSmartMusic Custom File
.UNFUNIF ROM File
.UUUuencoded File
.URLInternet Shortcut
.UNXUnix Text File
.UTF8Unicode UTF8-Encoded Text Document
.USXUnreal Static Meshes
.UT2Unreal Tournament Map
.UTXUnreal Texture Package
.UAXUnreal Audio Package
.UMXUnreal Music Package
.UNRUnreal Level Map
.UXXUnreal Tournament Cache
.UUnreal Tournament Class Package
.UCUnrealScript Class
.UVFUncertain Value Format
.UHAUHarc Compressed Archive
.UIFUniversal Image Format Disc Image
.UTXTUnicode Text File
.UWUnsigned Word Audio File
.ULTUltraTracker Module
.UNIMikMod UniMOD Module
.UWFUltraTracker Wave File
.UNAUTHSiteMinder Unauthorized Message File
.UAU Audio File
.USFNintendo 64 Music File
.USFLIBNintendo 64 Song Library
.U3PU3 Smart Application
.UIUser Interface File
.ULZUSBlyzer Data Capture File
.ULFUniversal List File
.ULSNetMeeting User Location Service File
.UCIUFS Explorer Backup File
.U3IU3 Application Information File
.UTCBioware Creature File
.UDBDynamics AX User Database File
.UIBAKUltraISO Backup Disk Image
.USAUnreal Saved Game File
.UISWindowBlinds User Interface Specification
.UMODUnreal Tournament Module File
.UT2MODUnreal Tournament 2003/2004 Module File
.UT3Unreal Tournament 3 Map File
.UKXUnreal Animation Package
.UVXUnreal Tournament 2003 Saved Game
.UPOIiGO Points of Interest File
.UNKNOWNUnknown File Type
.UT4MODUnreal Tournament 2004 Module
.USRFileMaker Pro Database File
.USERPROFILENorton AntiVirus User Profile File
.UDCXUniversal Data Connection File
.UNITYPACKAGEUnity Package File
.UDLMicrosoft Universal Data Link File
.UDCAdobe InDesign User Dictionary
.UMLUML Data Object Model
.UCTUC Browser Theme File
.UFRUltra Fractal File
.UPRFractal Parameters File
.UBOXUniverse Sandbox Data File
.USMUSM Game Video File
.UOTUniform Office Document
.UOPUniform Office Presentation
.UOSUniform Office Spreadsheet
.UPGUpgrade File
.USEQUSeq Genome Data File
.USFUniversal Subtitles Format File
.U11UFile 2011 Tax Return
.U12UFile 2012 Tax Return
.USTUTAU Sequence Text File
.UVWUVW Coordinates File
.UMDSplinter Cell Blacklist Game Data File
.UNITYPROJUnity 3D Project
.ULPEAGLE User Language Program
.UWRFUniversal Web Radio File
.UPSUPS Patch File
.UASSETUnreal Asset File
.U8Mario Kart Wii Archive
.UFOUnified Font Object File
.UBUnsigned Byte Audio File
.UUDUUDecoded File
.UFOUlead File Object
.ULAWRaw u-Law Audio File
.UOPUltima Online Patch File
.UDOmniPage User Dictionary
.UDEBDebian Package File
.UDSSierra Generations File
.UPDATEISAPI Update File
.UPXUltimate Packer for eXecutables File
.UZIPFreeBSD Compressed Disk Image
.UFS.UZIPCompressed Unix File System File
.UNLGarmin Unlock File
.UTWUnity Whirld File
.USERVisual Studio Project User Options File
.UDFUniversal Disk Format File
.UNTAutoCAD Unit Definition File
.UPRFileMaker User Dictionary
.UMLCLASSUML Class Model
.UMFMediaHolder Universal Media Format File
.UHTMLUC Browser Saved Webpage
.UPFMicroStation User Preferences File
.UPFUnified Power Format File
.UBJUniversal Binary JSON File
.UOFUniform Office Document
.USFEVGA Precision X Skin File
.UCLKilling Floor System File
.UEAProtector Suite QL Encrypted Archive
.UCEWindows UCE System File
.UGAUlead GIF Animator File
.ULXGlulx Game File
.ULDUnified Luminaire Data File
.UGRApophysis Ultra Fractal Gradient File
.UNIFUNIF ROM File
.UGOIRAUgoira Animated Image File
.UFTTorque Font Cache File
.UMAPUnreal Engine Map File
.USRLowrance GPS Data File
.UPFPanono Unstitched Panorama Format
.UXFUML eXchange Format
.UPDProgram Update Information
.USubsampled Raw YUV Image
.UC2UltraCompressor 2 Archive
.URTUtah Raster Toolkit File
.ULWu-Law Audio File
.UDFExcel User Defined Function
.UDSUniform Data System File
.UNKUnknown File
.UFSFreeBSD Unix File System File
.URRUniface Signatures File
.USTARUniform Standard Tape Archive Format File
.UPDATRiConomy Update File
.UQMThe Ur-Quan Masters Game Data File
.UDSNetBackup UNIX Domain Socket File
.UCMCrazy Machines Model File
.USERTILE-MSWindows 8 User Tile File
.U83D Lemmings Audio File
.UMSRune 3D Mesh File
.UT8Ghost Master Language File