olemus
fail, mille sisuks on vorminguta tekstandmed

Wiktionary:
1. (computing) a data file containing only plain, human-readable text, distinct from documents with embedded formatting
2. (computing) a data file in a character encoding that allows it to be read in non-specialised text editor

ülevaateid
https://en.wikipedia.org/wiki/Text_file
https://fileinfo.com/filetypes/text