20:02:45 Write to Excel2007 format<br />20:02:45 File written to 33chartcreate-composite.xlsx<br />20:02:45 Peak memory usage: 1.75 MB<br />20:02:45 Done writing file<br />File has been created in /home/hsinlung/public_html/core/vendor/phpoffice/phpexcel/Examples<br />