12:10:45 Write to Excel2007 format<br />12:10:45 File written to 33chartcreate-bar-stacked.xlsx<br />12:10:45 Peak memory usage: 2 MB<br />12:10:45 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />