18:36:07 Write to Excel2007 format<br />18:36:07 File written to 33chartcreate-multiple-charts.xlsx<br />18:36:07 Peak memory usage: 4 MB<br />18:36:07 Done writing file<br />File has been created in /home/imevent/public_html/backup/vendor/phpoffice/phpexcel/Examples<br />