Changes

'''[[File extension]]s''' are used by [[Windows]], [[Mac OS|Macintosh]], and now sometimes [[GNU/Linux]] [[operating system]]s to determine how each file should be used.  This is a list of some such file extensions.

'''[[File extension]]s''' are used by [[Windows]], [[Mac OS|Macintosh]], and now sometimes [[GNU/Linux]] [[operating system]]s to determine how each file should be used.  This is a list of some such file extensions.  Note that some operating systems are case-sensitive, while others are case-insensitive.  All are listed here in upper case, but may be only usable in lower case on some systems.

<!--<div style="width: 550px; text-align: center; border: 1px solid #999; background: #ccc; margin: .5em auto .5em auto; padding: 5px;">File extensions:[[File extension list##|#]]-[[File extension list#A|A]]-[[File extension list#B|B]]-[[File extension list#C|C]]-[[File extension list#D|D]]-[[File extension list#E|E]]-[[File extension list#F|F]]-[[File extension list#G|G]]-[[File extension list#H|H]]-[[File extension list#I|I]]-[[File extension list#J|J]]-[[File extension list#K|K]]-[[File extension list#L|L]]-[[File extension list#M|M]]-[[File extension list#N|N]]-[[File extension list#O|O]]-[[File extension list#P|P]]-[[File extension list#Q|Q]]-[[File extension list#R|R]]-[[File extension list#S|S]]-[[File extension list#T|T]]-[[File extension list#U|U]]-[[File extension list#V|V]]-[[File extension list#W|W]]-[[File extension list#X|X]]-[[File extension list#Y|Y]]-[[File extension list#Z|Z]]</div> -->

<!--<div style="width: 550px; text-align: center; border: 1px solid #999; background: #ccc; margin: .5em auto .5em auto; padding: 5px;">File extensions:[[File extension list##|#]]-[[File extension list#A|A]]-[[File extension list#B|B]]-[[File extension list#C|C]]-[[File extension list#D|D]]-[[File extension list#E|E]]-[[File extension list#F|F]]-[[File extension list#G|G]]-[[File extension list#H|H]]-[[File extension list#I|I]]-[[File extension list#J|J]]-[[File extension list#K|K]]-[[File extension list#L|L]]-[[File extension list#M|M]]-[[File extension list#N|N]]-[[File extension list#O|O]]-[[File extension list#P|P]]-[[File extension list#Q|Q]]-[[File extension list#R|R]]-[[File extension list#S|S]]-[[File extension list#T|T]]-[[File extension list#U|U]]-[[File extension list#V|V]]-[[File extension list#W|W]]-[[File extension list#X|X]]-[[File extension list#Y|Y]]-[[File extension list#Z|Z]]</div> -->

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