15:35:16 Write to Excel2007 format<br />15:35:16 File written to 33chartcreate-column-2.xlsx<br />15:35:16 Peak memory usage: 6.5 MB<br />15:35:16 Done writing file<br />File has been created in /var/www/rmzinfinity/vendor/phpoffice/phpexcel/Examples<br />