17:15:28 Write to Excel2007 format<br />17:15:28 File written to 33chartcreate-multiple-charts.xlsx<br />17:15:28 Peak memory usage: 4 MB<br />17:15:28 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />