if ($WE_NEED_TO_DO_ENCRYPTION) {
    if ($ext =~ /XLS/i) {
      # open a new excel file insert the word 'encryted' on the 1st row, 1st column.
      my $workbook  = Spreadsheet::WriteExcel->new($report_type . '_' . $time . $ext);
      my $worksheet = $workbook->add_worksheet();
      $worksheet->write(0, 0,  'encrypted');  
      # now copy report file into the new xsl file.
      # THIS IS WHERE I AM STUCK I NEED TO PUT THE REST OF ANOTHER FILE HERE IN THE SAME FORMAT