16:03:54 Write to Excel2007 format<br />16:03:54 File written to 33chartcreate-column-2.xlsx<br />16:03:54 Peak memory usage: 4 MB<br />16:03:54 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />