20:41:22 Write to Excel2007 format<br />20:41:22 File written to 33chartcreate-bar-stacked.xlsx<br />20:41:22 Peak memory usage: 2 MB<br />20:41:22 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />