18:32:15 Write to Excel2007 format<br />18:32:15 File written to 33chartcreate-bar-stacked.xlsx<br />18:32:15 Peak memory usage: 1.75 MB<br />18:32:15 Done writing file<br />File has been created in /var/www/html/onswitch.neon/vendor/phpoffice/phpexcel/Examples<br />