02:36:34 Write to Excel2007 format<br />02:36:34 File written to 33chartcreate-multiple-charts.xlsx<br />02:36:34 Peak memory usage: 6 MB<br />02:36:34 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />