21:21:53 Write to Excel2007 format<br />21:21:54 File written to 33chartcreate-column.xlsx<br />21:21:54 Peak memory usage: 4 MB<br />21:21:54 Done writing file<br />File has been created in /home/factovizjh/legitrack/vendor/phpoffice/phpexcel/Examples<br />