14:20:06 Write to Excel2007 format<br />14:20:06 File written to 33chartcreate-column.xlsx<br />14:20:06 Peak memory usage: 6 MB<br />14:20:06 Done writing file<br />File has been created in /var/www/html/elite-smart-tech/vendor/phpoffice/phpexcel/Examples<br />