20:33:06 Write to Excel2007 format<br />20:33:06 File written to 33chartcreate-multiple-charts.xlsx<br />20:33:06 Peak memory usage: 1.75 MB<br />20:33:06 Done writing file<br />File has been created in /var/www/chFinance/vendor/phpoffice/phpexcel/Examples<br />