file vs filer

file and filer both are nouns.

Word	Noun	Adjective	Verb	Adverb
file	Yes	No	Yes	No
filer	Yes	No	No	No

file (noun)	filer (noun)
a steel hand tool with small sharp teeth on some or all of its surfaces; used for smoothing wood or metal	a party who files a notice with a law court
office furniture consisting of a container for keeping papers in order	a clerk who is employed to maintain the files of an organization
a set of related records (either written or electronic) kept together
a line of persons or things ranged one behind the other

file (verb)	filer (verb)
place in a container for keeping records
file a formal charge against
record in a public office or in a court of law
smooth with a file
proceed in line