capacity, volume of a container / electrical capacitance or heat capacity

file (collection of papers) / (computing) 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.

(computing) a filename

(computing) text file

volumetric analysis

(computing) filesystem

(computing) File Transfer Protocol, FTP