14:13:51 Write to Excel2007 format<br />14:13:51 File written to 33chartcreate-multiple-charts.xlsx<br />14:13:51 Peak memory usage: 6.75 MB<br />14:13:51 Done writing file<br />File has been created in /var/www/wu1n/vendor/phpoffice/phpexcel/Examples<br />