11:30:16 Write to Excel2007 format<br />11:30:16 File written to 33chartcreate-bar-stacked.xlsx<br />11:30:16 Peak memory usage: 6 MB<br />11:30:16 Done writing file<br />File has been created in /var/www/html/SFL/vendor/phpoffice/phpexcel/Examples<br />