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Returns the current position within a file.

LOC(filenumber%)

    ■ filenumber%    The number of an open file or device.

    ■ For binary files, LOC returns the position of the last byte read or
      written.
    ■ For random-access files, LOC returns the number of the last record
      read from or written to the file.
    ■ For sequential files, LOC returns the current byte position in the
      file, divided by 128.

Example:
    OPEN "TEST.DAT" FOR RANDOM AS #1
    FOR i% = 1 TO 10
       PUT #1, , i%
    NEXT i%
    SEEK #1, 2
    GET #1, , i%
    PRINT "Data: "; i%; " Current record: "; LOC(1); " Next: "; SEEK(1)

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