12:40:40 Write to Excel2007 format<br />12:40:40 File written to 33chartcreate-column.xlsx<br />12:40:40 Peak memory usage: 2 MB<br />12:40:40 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />