18:30:15 Write to Excel2007 format<br />18:30:15 File written to 33chartcreate-line.xlsx<br />18:30:15 Peak memory usage: 2 MB<br />18:30:15 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />