12:28:16 Write to Excel2007 format<br />12:28:16 File written to 33chartcreate-bar-stacked.xlsx<br />12:28:16 Peak memory usage: 4 MB<br />12:28:16 Done writing file<br />File has been created in /home/ruqwxybg/myprivatedesk.c4-first.ch/vendor/phpoffice/phpexcel/Examples<br />