The Collaborative International Dictionary of English v.0.48:

File \File\, v. i. [Cf. F. filer.] (Mil.)
   To march in a file or line, as soldiers, not abreast, but one
   after another; -- generally with off.
   [1913 Webster]

   To file with, to follow closely, as one soldier after
      another in file; to keep pace.
      [1913 Webster]

            My endeavors
            Have ever come too short of my desires,
            Yet filed with my abilities.          --Shak.
      [1913 Webster]