filename extension
The portion of a filename, following the final point, which indicates the kind of data stored in the file. Many operating systems use filename extensions, e.g. Unix, VMS, MS-DOS, Microsoft Windows. They are usually from one to three letters (some sad old OSes support no more than three). Examples include "c" for C source code, "ps" for PostScript, "txt" for arbitrary text. NEXTSTEP and its descendants also use extensions on directories for a similar purpose. Apart from informing the user what type of content the file holds, filename extensions are typically used to decide which program to launch when a file is "run", e.g. by double-clicking it in a GUI file browser. They are also used by Unix' s make to determine how to build one kind of file from another. Compare: MIME type. {Tony Warr' s comprehensive list (http://camalott.com/~rebma/filex.html)}. {FAQS.org Graphics formats (http://www.faqs.org/faqs/graphics/fileformats-faq/)}. (2002-04-19) In addition suitable contents:
[ 2 ] [ = ] [ ad ] [ al ] [ am ] [ an ] [ aq ] [ ar ] [ arc ] [ at ] [ au ] [ b ] [ bi ] [ bit ] [ bm ] [ br ] [ browser ] [ by ] [ C ] [ ca ] [ cat ] [ ch ] [ ci ] [ ck ] [ cl ] [ click ] [ co ] [ code ] [ com ] [ con ] [ cr ] [ D ] [ data ] [ de ] [ dec ] [ do ] [ DOS ] [ double-click ] [ du ] [ E ] [ ec ] [ ed ] [ ee ] [ eh ] [ EP ] [ er ] [ era ] [ es ] [ et ] [ extension ] [ FAQ ] [ fi ] [ file ] [ fo ] [ for ] [ fr ] [ G ] [ gr ] [ graph ] [ GUI ] [ h ] [ hat ] [ hr ] [ ht ] [ id ] [ ie ] [ il ] [ in ] [ inc ] [ include ] [ int ] [ io ] [ ir ] [ is ] [ it ] [ ke ] [ ki ] [ la ] [ ld ] [ Lex ] [ li ] [ list ] [ ls ] [ lu ] [ ly ] [ M ] [ ma ] [ Microsoft ] [ mil ] [ MIME ] [ MIME type ] [ ml ] [ mo ] [ mod ] [ module ] [ mp ] [ ms ] [ MS-DOS ] [ N ] [ na ] [ nc ] [ ne ] [ NEXTSTEP ] [ nf ] [ ng ] [ ni ] [ no ] [ ns ] [ O ] [ om ] [ op ] [ operating system ] [ org ] [ OS ] [ pa ] [ pe ] [ ph ] [ pl ] [ point ] [ port ] [ PostScript ] [ pr ] [ program ] [ pt ] [ Q ] [ query ] [ rc ] [ re ] [ ro ] [ row ] [ ru ] [ run ] [ S ] [ sa ] [ sc ] [ se ] [ si ] [ so ] [ source ] [ source code ] [ st ] [ STEP ] [ store ] [ su ] [ support ] [ sy ] [ system ] [ T ] [ text ] [ th ] [ tm ] [ to ] [ tp ] [ tr ] [ TS ] [ tt ] [ type ] [ ua ] [ UI ] [ up ] [ us ] [ user ] [ V ] [ ve ] [ VM ] [ VMS ] [ win ] [ Windows ] [ ws ] [ X ] [ XT ] [ ~ ]
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