XSAVE /OUTFILE='filename' /{COMPRESSED,UNCOMPRESSED} /DROP=var_list /KEEP=var_list /RENAME=(src_names=target_names)...
The XSAVE transformation writes the active file dictionary and data to a system file stored on disk.
XSAVE is a transformation, not a procedure. It is executed when the data is read by a procedure or procedure-like command. In all other respects, XSAVE is identical to SAVE. See SAVE, for more information on syntax and usage.