/FORMAT=option When you specify a MACRO output file with the /MACRO qualifier, use this qualifier to specify the appropriate Macro-32 file format. You may select one of two format options, either NCS (the default) or 256. If you select NCS, NCS formats the collating sequence and/or string conversion tables for use by the NCS routines. If you select 256, NCS formats the the collating sequence and/or string conversion tables as 256-byte tables that can be used by the run-time library routine LIB$MOVTC.