14:58:13 Write to Excel2007 format<br />14:58:13 File written to 33chartcreate-column.xlsx<br />14:58:13 Peak memory usage: 4 MB<br />14:58:13 Done writing file<br />File has been created in /home/wtogroup/wtogroup.com/vendor/phpoffice/phpexcel/Examples<br />