Perl CSV to Excel 2003

http://www.perlmonks.org/?abspart=1;displaytype=displaycode;node_id=635437;part=1

http://www.perlmonks.org/?node_id=635437

http://cpansearch.perl.org/src/JMCNAMARA/Spreadsheet-WriteExcel-2.37/examples/csv2xls.pl

http://unix.stackexchange.com/questions/158254/convert-csv-to-xls-file-on-linux