02:35:17 Write to Excel2007 format<br />02:35:17 File written to 33chartcreate-bar-stacked.xlsx<br />02:35:17 Peak memory usage: 4 MB<br />02:35:17 Done writing file<br />File has been created in /var/www/html/test/public/vendor/phpoffice/phpexcel/Examples<br />