'Muster file' definitions:

Definition of 'Muster file'

From: GCIDE

Muster \Mus"ter\, n. [OE. moustre, OF. mostre, moustre, F. montre, LL. monstra. See Muster, v. t.]
1. Something shown for imitation; a pattern. [Obs.] [1913 Webster]
2. A show; a display. [Obs.] --Piers Plowman. [1913 Webster]
3. An assembling or review of troops, as for parade, verification of numbers, inspection, exercise, or introduction into service. [1913 Webster]
The hurried muster of the soldiers of liberty. --Hawthorne. [1913 Webster]
See how in warlike muster they appear, In rhombs, and wedges, and half-moons, and wings. --Milton. [1913 Webster]
4. The sum total of an army when assembled for review and inspection; the whole number of effective men in an army. [1913 Webster]
And the muster was thirty thousands of men. --Wyclif. [1913 Webster]
Ye publish the musters of your own bands, and proclaim them to amount of thousands. --Hooker. [1913 Webster]
5. Any assemblage or display; a gathering. [1913 Webster]
Of the temporal grandees of the realm, mentof their wives and daughters, the muster was great and splendid. --Macaulay. [1913 Webster]
Muster book, a book in which military forces are registered.
Muster file, a muster roll.
Muster master (Mil.), one who takes an account of troops, and of their equipment; a mustering officer; an inspector. [Eng.]
Muster roll (Mil.), a list or register of all the men in a company, troop, or regiment, present or accounted for on the day of muster.
To pass muster, to pass through a muster or inspection without censure. [1913 Webster]
Such excuses will not pass muster with God. --South. [1913 Webster]