WordNet sense 1 (a line of persons or things ranged one behind the other):

Indian file, single file

WordNet sense 2 (a set of related records (either written or electronic) kept together):

data file

WordNet sense 3 (office furniture consisting of a container for keeping papers in order):

file cabinet, filing cabinet

WordNet sense 4 (record in a public office or in a court of law):

register

WordNet sense 5 (place in a container for keeping records):

file away

WordNet sense 6 (file a formal charge against):

charge, lodge