computer file vs data file

computer file and data file both are nouns.

Word	Noun	Adjective	Verb	Adverb
computer file	Yes	No	No	No
data file	Yes	No	No	No

As nouns, data file is a hypernym of computer file; that is, data file is a word with a broader meaning than computer file:

computer file: (computer science) a file maintained in computer-readable form
data file: a set of related records (either written or electronic) kept together

Other hypernyms of computer file include file.

computer file (noun)	data file (noun)
(computer science) a file maintained in computer-readable form	a set of related records (either written or electronic) kept together