Search in: Word
Vietnamese keyboard: Off
Virtual keyboard: Show
Computing (FOLDOC) dictionary (also found in English - English (Wordnet), )
filename extension
Jump to user comments
filename extension The portion of a filename, following the
final point, which indicates the kind of data stored in the
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.