18:02:19 Write to Excel2007 format<br />18:02:19 File written to 33chartcreate-column-2.xlsx<br />18:02:19 Peak memory usage: 5.25 MB<br />18:02:19 Done writing file<br />File has been created in /alidata/www/jiandance/vendor/phpoffice/phpexcel/Examples<br />