18:07:23 Write to Excel2007 format<br />18:07:23 File written to 33chartcreate-bar-stacked.xlsx<br />18:07:23 Peak memory usage: 6.25 MB<br />18:07:23 Done writing file<br />File has been created in /data/www/terceros/vendor/phpoffice/phpexcel/Examples<br />