18:38:04 Write to Excel2007 format<br />18:38:04 File written to 33chartcreate-multiple-charts.xlsx<br />18:38:04 Peak memory usage: 2 MB<br />18:38:04 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />