UAP

User agent profile (Used by wireless telephony applications)

UB

Raw unsigned byte (8-bit) data

UC2

Compressed archive (UltraCompressor II)

UCN

New compressed archive (UltraCompressor II)

UDF

Unique Database (Microsoft Windows NT)

UDF

Image filter (Photostyler)

UDW

Raw unsigned doubleword (32-bit) data

UE2

Encrypted archive (UltraCompressor II)

UFO

Object file (Ulead)

UG

Drawing file (AutoCAD and others)

UHS

Binary file (Universal Hint System)

UI

Espire source code (Geoworks UI Compiler)

UI

User interface file (Sprint)

UIF

Long prompts for Microsoft Windows ((Microsoft WordPerfect for Windows)

UIH

Espire header file (Geoworks UI Compiler)

UL

Audio file (ULAW)

ULAW

(CCITT G.711) audio (US Telephony)

ULD

Uploaded file information (Procomm Plus)

ULT

Music module (MOD) (UltraTracker)

UMB

Backup file (archive) (MemMaker)

UNI

UniMod music module (MOD) (MikMod)

UNI

Datafile (Forcast Pro)

UNX

Text file (Unix specific information)

UPD

Updated program data (Generic)

UPD

Updated program data (dBase)

UPI

Program file (ULead Photo Impact)

UPO

Compiled updated datafile (dBase)

UPX

Saved Image file (ULead Photo Express)

URF

Universal radar format (Radar ViewPoint)

URL

Internet shortcut file (Universal Resource Locator)

USE

Source Integrity file (MKS)

USP

Printer font w/updated USACII extended character set (Pagemaker)

USR

User database file (Procomm Plus)

USR

Audit trail file (Pro/Engineer)

USR

User database file (Turbo C++)

USR

User database file (Tour)

UU

UU-encoded file

UU

Compressed ASCII archive (UUDE/ENCODE)

UUE

Executable compressed ASCII archive (UUDE/ENCODE)

UUE

UU-encoded file

UW

Raw unsigned 16-bit) datafile (Word)

UWF

Wave file (UltraTracker)


V

Consistency check support file (ReaGeniX Code Generator)

V

Main image input file (Vivid 2.0)

VAL

Validity checks/referential integrity checks (Paradox for Windows)

VAL

Values list object file (dBase Application Generator)

VAL

Asset management document (Milliplex OmniValue)

VAN

Animation file (VistaPro)

VAP

Annotated speech file (Generic)

VAR

Variable file (IconAuthor)

VAR

ASCII text file for data dictionary (Sterling Software Groundworks, COOL Business Team Enterprise Model)

VBA

VBase file

VBP

Project file (Microsoft Visual Basic)

VBR

Remote automated registration file (Microsoft Visual Basic)

VBS

Script file (Microsoft Visual Basic)

VBW

Workspace file (Microsoft Visual Basic)

VBX

Custom control file (Microsoft Visual Basic)

VBX

Visual basic extension (Microsoft Visual Basic)

VC

Include file with color definitions (Vivid 2.0)

VC

Spreadsheet (VisaCalc)

VCE

Unformatted voice file (used by Cool Edit)

VCE

Unformatted voice file (Natural Microsystems) (NMS)

VCF

Virtual card file (Netscape)

VCF

Virtual card file (Many programs use this extension)

VCF

Configuration file; defines objects for use with Sense8's WorldToolKit (Vevi)

VCT

Class library (Microsoft FoxPro) (MFC)

VCW

Visual workbench information file (Microsoft Visual C++)

VCX

Class library (Microsoft FoxPro)(MFC)

VDA

Targa bitmap

VDA

Graphics image (Generic)

VDR

Drawing file (ComputerEasy Draw)

VEL

3D drawing file (CAD( (Ashlar)

VEW

View file (Clipper 5)

VEW

View file (Lotus Approach)

VFL

Clip art file (PrintMaster Gold)

VFM

Voting form (Voter)

VFN

Voting form for customers (VFN)

VGA

Video graphics array (Monitor type, also defines if your monitor is compliant with the new (1994) SVGA (Super Video Graphics Array) (SVGA)

VGA

Video graphics array (Font type for display on a VGA Monitor)

VGD

Visual display driver ( Generic CADD)

VGR

Graphics file (Ventura Publisher)

VI

Graphics file (Jovian Logic VI)

VI

Virtual Instrument file (National Instruments LABView)

VIC

Graphics file (Vicar)

VID

Shell monitor file (Microsoft DOS v.5)

VID

Screen device driver (Microsoft Word)

VID

Bitmap graphics (YUV12C M-Motion Frame Buffer)

VID

Bethesda video files (Terminator, Future Shock)

VIF

Khoros Visualisation image (SDSC Image Tool)

VIFF

Khoros Visualisation image (SDSC Image Tool)

VIK

Graphics Image (Viking)

VIR

File identified as a virus-infected file by Norton AntiVirus and possibly others

VIS

Graphics image file (VIS)

VIV

Streaming video file (VivoActive)

VIZ

dVS/dVISE file (Division)

VLB

Library file (Corel Ventura)

VLM

Drafting program file (Vellum, by Ashler)

VM

Virtual memory file (Geoworks)

VMC

Virtual memory configuration file (Adobe Acrobat Reader)

VMD

On-line video file (Sierra) (Torin's Passage)

VMF

Audio file (FaxWorks)

VMF

Font characteristics file (Ventura Publishing)

VML

Vector markup language (used by Microsoft Office 2000)

VMS

Text file with vms specific information

VO

Include file with object definiton (Vivid 2.0)

VOB

Encrypted video and audio files used on current DVD's (Digital Video Disk)

VOC

Audio file (Creative Labs Sound Blaster)

VOC

Audio file (Quartet)

VOF

Object folder (VZ Programmer)

VOX

Dialogic audio file coded using ADPCM

VOX

Formatted voice file (Natural Microsystems) (NMS)

VOX

Audio file (Talking Technology)

VP

Publication (Ventura Publisher)

VPG

Graphics image file (VPGraphics)

VQA

Video files (Westwood Studios)

VQE

VQ Locator file (Yamaha Sound)

VQF

VQ file (Yamaha Sound) (possible emerging standard)

VQL

VQ Locator file (Yamaha Sound)

VRF

Configuration file (Oracle 7)

VRM

Overlay file (Quattro Pro)

VRML

A VRML file

VRP

Project file (VXRexx)

VRS

Video device driver (Microsoft WordPerfect for Windows)

VS

Include file w/surface definition (Vivid 2.0)

VSD

Drawing file (flow chart or schematic)(Shapeware Visio)

VSL

Download List file (GetRight)

VSM

Simulation model (VisSim)

VSN

A Windows 9x/NT ViruSafe version file; used to keep information about all the files in a directory; when a file is accessed, information is compared with the VSN information to ensure that they match

VSP

Image sprite (SPX)

VSP

Data print file (Schedule Soft)

VSS

Stencil file (Shapeware Visio)

VSS

Smartshapes image file (Shapeware Visio)

VST

Targa bitmap (Generic)

VST

Bitmap graphic file (TrueVison Vista)

VSW

Workspace file (Shapeware Visio)

VUE

Animation file (3D Studio)

VUE

View file (dBase IV)

VUE

View file (Microsoft FoxPro)

VW

Text file (Volkswriter)

VWP

Audio MetaSound plug-in (VoxWare Audio Compression Toolkit version 2.02.61)

VWP

Audio plug-in (Voxware MetaVoice Toolkit)

VWR

File viewer (PC Tools)

VXD

Virtual device driver (Microsoft Windows 9.x)

V8

8-bit audio file (CoVox)