(computing) format, file type / format of digital media such as DVDs / the form that something takes, in style, size, pattern, and so on

file (collection of papers) / (computing) file

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

What? What did you say?

whatchamacallit, X

(computing) a filename

(computing) text file

"Clear file folder", a simple plastic sleeve (perhaps only somewhat opaque when a design is printed on it, as is common in promotional events) for holding documents, open on two consecutive sides and closed on two consecutive sides.

what

What?, Huh?