Format 2: OPEN statement for indexed and relative files 1 OPEN 2+ 2.0 INPUT 2.0.1+ 2.0.1 file-name-1 2.0 OUTPUT 2.0.1+ 2.0.1 file-name-2 2.0 I-O 2.0.1+ 2.0.1 file-name-3 2.0 EXTEND 2.0.1+ 2.0.1 file-name-4