15:04:47 Write to Excel2007 format<br />15:04:47 File written to 33chartcreate-multiple-charts.xlsx<br />15:04:47 Peak memory usage: 4 MB<br />15:04:47 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />