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Definition of File name extension
1. Noun. 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 BASIC files use the filename extension .BAS"
Exact synonyms: Extension, Filename Extension
Group relationships: Computer File Name, Computer Filename, File Name, Filename
Generic synonyms: String
Group relationships: Computer File Name, Computer Filename, File Name, Filename
Generic synonyms: String