an identifying name given to an electronically stored computer file, conforming to limitations imposed by the operating system, as in length or restricted choice of characters.
file·name also file name (fīl'nām') n. A name given to a computer file to distinguish it from other files, often containing an extension that classifies it by type.
filename (fīl'nām') Pronunciation Key
A name given to a computer file to distinguish it from other computer files. Filenames often contain an extension that classifies the file by type.