file extensions

A form of file extension — A short series of text characters at the end of a computer filename, used to indicate the type of contents and the software that will be required to operate or open it.

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Meanings

noun
  1. pluralplural of file extension
Cite this entry
APA

file extensions. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/file%20extensions

MLA

“file extensions.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/file%20extensions. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “file extensions,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/file%20extensions.

Source: file extensions on Wiktionary, CC BY-SA 4.0.