File extension is usually three or more letter code at the end of computer file names. File extensions are useful to computer operating systems like Microsoft Windows or Apple MAC OS X and tells to OS what kind of data file they are dealing with and what associated program can open or edit the file.
We collected a huge searchable file extension list. File-extensions.org library contains thousands of file extensions today and database is still growing. A large number of file type entries have detailed explanation of each file type and the way they are used today and contain linked programs that can view, open, edit, convert or play unknown file you search for.

If you find a file in your computer with an unknown file extension, you are at the right place. You can look up the information about desired file extension and find out linked programs using File-extensions.org website.
Simply use the search box in the top-left corner of each page to search for a specific file extension. You may also view an alphabetical list of extensions using the starting letters above, or browse extensions by file type categories using the green navigation menu at the left side of the page.

File extension of the day:

Random daily pick from file-extensions.org database.

sv1 file icon.sv1 - RollerCoaster Tycoon saved game

File extension is used by RollerCoaster Tycoon.

Associated application: RollerCoaster Tycoon

Help how to open: not available

Help how to convert this file type: not available

Help how to backup this file type: not available

Database contains 2 records with the same file extension name.
Last update on June 4, 2009.

[file extension sv1]

Recently updated file extensions:

Existing and new file extensions are updated or added very often.

qcow file icon file extension qcow - QEMU Copy-On-Write file

rul file icon file extension rul - Gerber format file

rep file icon file extension rep - Gerber format file

gto file icon file extension gto - Gerber format file

gto file icon file extension gto - Quicken on-line file

gtl file icon file extension gtl - Gerber format file

gpt file icon file extension gpt - Gerber format file

gpt file icon file extension gpt - MOPAC graph file

gpt file icon file extension gpt - MicroImages text group file

gbp file icon file extension gbp - Gerber format file

gbl file icon file extension gbl - Gerber format file

gbl file icon file extension gbl - VAXTPU global definitions

gbl file icon file extension gbl - Gravityball file

gbl file icon file extension gbl - Microsoft Visual Basic global definition file

gd1 file icon file extension gd1 - Gerber format file

ppt file icon file extension ppt - Microsoft Office PowerPoint Presentation file format

pptx file icon file extension pptx - PowerPoint 2007 XML Presentation

ppt3 file icon file extension ppt3 - Microsoft PowerPoint presentation file

ppnt file icon file extension ppnt - Microsoft PowerPoint file

qwq file icon file extension qwq - Teleplace Landmark Link file

4vr file icon file extension 4vr - 4th Dimension database windows saved variable

pr3 file icon file extension pr3 - PFXplus resource file

pr3 file icon file extension pr3 - Payroll employer payees

pr3 file icon file extension pr3 - Adobe Persuasion presentation

pr3 file icon file extension pr3 - dBASE IV PostScript printer driver

mvx file icon file extension mvx - Intentia International Movex

mvx file icon file extension mvx - Mixer file

gb$ file icon file extension gb$ - Basic VB Beispiel Kartei file

20 file icon file extension 20 - Linux file

20 file icon file extension 20 - Cord Blood file format

20 file icon file extension 20 - Salt Lake city game music file

ixd file icon file extension ixd - Videoalive Indexer extracted closed captions and metadata

hppcl file icon file extension hppcl - Hewlett-Packard Printer Control Language vector image

hpp file icon file extension hpp - Hewlett-Packard Printer Control Language vector image

hpp file icon file extension hpp - C++ header file

gss file icon file extension gss - Multi Game Memory Editor memory snapshot

gss file icon file extension gss - Geometer's Sketchpad script file

oaf file icon file extension oaf - Outrage animation rows

oaf file icon file extension oaf - Microsoft Flight Simulator texture file

oaf file icon file extension oaf - ETH Oberon applet file

Add file extensions search capability directly into your browser search panel for future use.
Click here to add a new search provider to your browser.

Browsers supporting open search feature: Internet Explorer versions 7 and 8, Firefox versions 2 and 3.

Add File-extensions.org custom search button to your Google Toolbar.
Click here to add a new search button to your Google Toolbar (you must have it installed first).

For an overview of common file types,
visit the common file extensions page, which includes a list of the most important computer file formats you should know.

For an overview of unknown file types,
visit the unknown file extensions page, which includes a list of the unknown file formats. If you know function of any unknown extension, please click on Submit button at the top of page and contact us.

Show file extensions at your Windows operating system

By default, file extensions are disabled at Windows systems. What you can't see and you don't know about it, can hurt you one day. This allows virus and malicious software writers to distribute executable files disguised as something non-executable. For example, an .exe file might appear to be an common text file (some-filename.txt[.exe] with hidden extension). We think that hidding file extensions by default is wrong decision from Microsoft, but they are still disabled also at new Windows Vista. For more information visit Executable file extensions page.

Most popular file extension list:

List of file extensions you should know.

Microsoft Windows Live Messenger UCC API log file icon file extension uccapilog - Microsoft Windows Live Messenger UCC API log file

ASP.NET script, page icon file extension aspx - ASP.NET script, page

Audio files encoded by Flac - free lossless audio codec icon file extension flac - Audio files encoded by Flac - free lossless audio codec

WinRAR compressed archive icon file extension rar - WinRAR compressed archive

Movie subtitle file format (SubRip format) icon file extension srt - Movie subtitle file format (SubRip format)

Compressed file from a multi-volume archive icon file extension 002 - Compressed file from a multi-volume archive

Comic Book Archive file or ComicBook Reader File icon file extension cbr - Comic Book Archive file or ComicBook Reader File

Virtual DJ video effects icon file extension svp - Virtual DJ video effects

BitTorrent information file icon file extension torrent - BitTorrent information file

Nero-Burning ROM CD or DVD image file icon file extension nrg - Nero-Burning ROM CD or DVD image file

Excel 2007 XML Workbook icon file extension xlsx - Excel 2007 XML Workbook

Microsoft Works document icon file extension wps - Microsoft Works document

SketchUp document file icon file extension skp - SketchUp document file

MPEG-4 video file format icon file extension mp4 - MPEG-4 video file format

Binary file icon file extension bin - Binary file

OpenOffice.org Writer text document icon file extension odt - OpenOffice.org Writer text document

Partial download file icon file extension part - Partial download file

Age of Mythology world lighting effect icon file extension lgt - Age of Mythology world lighting effect

iWork Pages document file icon file extension pages - iWork Pages document file

VMware virtual disk file icon file extension vmdk - VMware virtual disk file

Enter file extension without a dot (e.g. rar).
Search for file extension details or associated programs.