/FCOMP, Ident,
                LEVEL
Specifies file compression level.
IdentANSYS file name identifier. Input the label RST to compress the following results files: .RST, .RSTP, .RTH, and .RMG. See File Management and Files for file descriptions.
LEVELCompression level. Valid input values are 0 (no compression - default) to 5 (maximum compression).
Specifies file compression for results files (.RST, .RSTP, .RTH, and .RMG files). Records are compressed as they are written and uncompressed as they are read (for example, by the SET command).
See File Compression in the Basic Analysis Guide for more details.