11:20:27 Write to Excel2007 format<br />11:20:27 File written to 33chartcreate-column-2.xlsx<br />11:20:27 Peak memory usage: 2 MB<br />11:20:27 Done writing file<br />File has been created in /home/ruqwxybg/myprivatedesk.c4-first.ch/vendor/phpoffice/phpexcel/Examples<br />