15:12:22 Write to Excel2007 format<br />15:12:23 File written to 33chartcreate-bar-stacked.xlsx<br />15:12:23 Peak memory usage: 4 MB<br />15:12:23 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />