filename extension

(redirected from BAK file)
Also found in: Thesaurus, Medical, Encyclopedia.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.filename extension - a string of characters beginning with a period and followed by one or more 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"
computer file name, computer filename, file name, filename - (computer science) the name given to a computer file in order to distinguish it from other files; may contain an extension that indicates the type of file
string - a linear sequence of symbols (characters or words or phrases)
References in periodicals archive ?
Need to delete all those BAK files from your hard drive?
IF you wish to clean your entire disk of BAK files, go to the root and type GLOBAL DEL*.