16:44:40 Write to Excel2007 format<br />16:44:40 File written to 33chartcreate-bar-stacked.xlsx<br />16:44:40 Peak memory usage: 5.25 MB<br />16:44:40 Done writing file<br />File has been created in /alidata/www/jiandantest/vendor/phpoffice/phpexcel/Examples<br />