use strict; use warnings; use Excel::Writer::XLSX; # Create a new workbook called simple.xls and add a worksheet my $workbook = Excel::Writer::XLSX->new( 'a_simple.xlsx' ); my $worksheet = $workbook->add_worksheet(); my $textformat = $workbook->add_format(); $textformat->set_num_format( 0x31 ); $worksheet->write( 0, 0, "4004885000007", $textformat ); $workbook->close();