19:53:26 Write to Excel2007 format<br />19:53:26 File written to 33chartcreate-multiple-charts.xlsx<br />19:53:26 Peak memory usage: 1.75 MB<br />19:53:26 Done writing file<br />File has been created in /home/hsinlung/public_html/core/vendor/phpoffice/phpexcel/Examples<br />