[f. FILE v.3 + -ER1.] a. One who places something upon a file. b. An apparatus for filing or holding papers.
1880. Libr. Univ. Knowl. (N.Y.), XI. 377. Notice is given to the filer of the caveat.
1874. Knight, Dict. Mech., Filer. An office device for holding bills and loose papers.
