OPEN Statement — Format 1 — Sequential >>-OPEN---------------------------------------------------------> .------------------------------------------------------. | .--------------------------------------. | V V | | >----+-INPUT----file-name-1--+---------------------+-+--+-+---->< | +-REVERSED------------+ | | '-+------+--NO REWIND-' | | '-WITH-' | | .--------------------------------------. | | V | | +-OUTPUT----file-name-2--+---------------------+-+-+ | '-+------+--NO REWIND-' | | '-WITH-' | | .-------------. | | V | | +-I-O----file-name-3-+-----------------------------+ | .-------------. | | V | | '-EXTEND----file-name-4-+--------------------------'