18:21:44 Write to Excel2007 format<br />18:21:44 File written to 33chartcreate-scatter.xlsx<br />18:21:44 Peak memory usage: 5.5 MB<br />18:21:44 Done writing file<br />File has been created in /home/glink/haiphams3.glinkdeployments.com/exam-chat/vendor/phpoffice/phpexcel/Examples<br />