18:53:07 Write to Excel2007 format<br />18:53:07 File written to 33chartcreate-bar.xlsx<br />18:53:07 Peak memory usage: 6 MB<br />18:53:07 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />