21:47:19 Write to Excel2007 format<br />21:47:19 File written to 33chartcreate-column.xlsx<br />21:47:19 Peak memory usage: 2 MB<br />21:47:19 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />