12:10:56 Write to Excel2007 format<br />12:10:56 File written to 33chartcreate-column.xlsx<br />12:10:56 Peak memory usage: 2 MB<br />12:10:56 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />