19:23:46 Write to Excel2007 format<br />19:23:46 File written to 33chartcreate-bar-stacked.xlsx<br />19:23:46 Peak memory usage: 2 MB<br />19:23:46 Done writing file<br />File has been created in /var/www/html/test/public/vendor/phpoffice/phpexcel/Examples<br />