Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
xls2csv -VERSION (return code: 0)
Catdoc Version 0.95
xls2csv --help (return code: 1)
xls2csv: invalid option -- '-'
xls2csv [-xlV] [-g number] [-f date-format] [-b string] [-s charset] [-d charset] [-c char] [ -q number] files