21:17:23 Write to Excel2007 format<br />21:17:23 File written to 33chartcreate-multiple-charts.xlsx<br />21:17:23 Peak memory usage: 5.5 MB<br />21:17:23 Done writing file<br />File has been created in /home/glink/haiphams3.glinkdeployments.com/exam-chat/vendor/phpoffice/phpexcel/Examples<br />