17:15:52 Write to Excel2007 format<br />17:15:52 File written to 33chartcreate-bar-stacked.xlsx<br />17:15:52 Peak memory usage: 2 MB<br />17:15:52 Done writing file<br />File has been created in /home/kayako/public_html/vendor/phpoffice/phpexcel/Examples<br />