18:25:20 Write to Excel2007 format<br />18:25:20 File written to 33chartcreate-multiple-charts.xlsx<br />18:25:20 Peak memory usage: 2 MB<br />18:25:20 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />