18:28:31 Write to Excel2007 format<br />18:28:31 File written to 33chartcreate-column-2.xlsx<br />18:28:31 Peak memory usage: 1.75 MB<br />18:28:31 Done writing file<br />File has been created in /var/www/html/onswitch.neon.service/vendor/phpoffice/phpexcel/Examples<br />