18:42:54 Write to Excel2007 format<br />18:42:54 File written to 33chartcreate-column.xlsx<br />18:42:54 Peak memory usage: 1.75 MB<br />18:42:54 Done writing file<br />File has been created in /var/www/html/onswitch.neon/vendor/phpoffice/phpexcel/Examples<br />