install Spreadsheet::WriteExcel Spreadsheet::ParseExcel

http://cpan.uwinnipeg.ca/htdocs/Spreadsheet-WriteExcel/INSTALL.html

http://www.thegeekstuff.com/2011/12/perl-and-excel/

install manually

http://www.thegeekstuff.com/2008/09/how-to-install-perl-modules-manually-and-using-cpan-command/