18:23:03 Write to Excel2007 format<br />18:23:03 File written to 33chartcreate-column-2.xlsx<br />18:23:03 Peak memory usage: 6 MB<br />18:23:03 Done writing file<br />File has been created in /var/www/html/ims-dev/vendor/phpoffice/phpexcel/Examples<br />