21:44:07 Write to Excel2007 format<br />21:44:07 File written to 33chartcreate-column-2.xlsx<br />21:44:07 Peak memory usage: 4 MB<br />21:44:07 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />