18:02:20 Write to Excel2007 format<br />18:02:20 File written to 33chartcreate-bar-stacked.xlsx<br />18:02:20 Peak memory usage: 6.5 MB<br />18:02:20 Done writing file<br />File has been created in /var/www/hobn/vendor/phpoffice/phpexcel/Examples<br />