12:34:20 Write to Excel2007 format<br />12:34:20 File written to 33chartcreate-bar-stacked.xlsx<br />12:34:20 Peak memory usage: 6 MB<br />12:34:20 Done writing file<br />File has been created in /home/app/htdocs/lidia/vendor/phpoffice/phpexcel/Examples<br />