14:52:56 Write to Excel2007 format<br />14:52:56 File written to 33chartcreate-bar-stacked.xlsx<br />14:52:56 Peak memory usage: 3.75 MB<br />14:52:56 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />