$worksheet->write_number( $row, $col, sprintf ('%d',$data{'Peak_MO'}), $number);


$worksheet->write( $row, $col, sprintf ('%d',$data{'Peak_MO'}), $number);


##</code><code>##


my $number = $workbook->add_format(
                                        font     => 'Arial',
                                        border   => 1,
                                        size     => 10,
                                        align    => 'center',
                                        valign   => 'vcenter',
                                        italic   => '1',
                                  );