File number
Used in OPEN, READ, and CLOSE statements to designate a file, printing, or window number. For example:
00130 open #1: "name=orders.INT,kfname=lastfirst.int, recl=118,kps=31/1,kln=30/30,USE", internal, outin, keyed
00290 read #1, using RECFORM: Mat Answers$,Shipping$,Mat Ordered eof DONEREADING
00300 RECFORM: form C 30,C 30,C 30,C 15,C 2,C 7,C 1,N 1,N 1,N 1
00500 open #255:
07500 close#1