/FROMCODE=fromcodeset
A required qualifier that specifies the codeset of the
characters in the input file (infile).
/TOCODE=tocodeset
A required qualifier that specifies the codeset of the
characters in the output file (outfile).
Public conversion table files are in the directory defined by
the logical name SYS$I18N_ICONV. Put new conversion table files
in the same directory if you want to make them available
system-wide.