13:58:11 Write to Excel2007 format<br />13:58:11 File written to 33chartcreate-bar-stacked.xlsx<br />13:58:11 Peak memory usage: 6.5 MB<br />13:58:11 Done writing file<br />File has been created in /var/www/rmz31/vendor/phpoffice/phpexcel/Examples<br />