Definitions for "File name extension"
Keywords:  doc, bak, powerpoint, letter, bas
A set of three letters automatically appended to the end of a file name to identify it as a PowerPoint presentation.
n. An addition to a file name that identifies the file type (for example, text file or program file).
a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename; "most applications provide extensions for the files they create"; "most BASIC files use the filename extension .BAS"
Keywords:  suffix, addition, optional, name, form
an optional addition to the file name in a suffix of the form "
Keywords:  server
Keywords:  system