04:20:50 Write to Excel2007 format<br />04:20:50 File written to 33chartcreate-column-2.xlsx<br />04:20:50 Peak memory usage: 4 MB<br />04:20:50 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />