08:55:30 Write to Excel2007 format<br />08:55:30 File written to 33chartcreate-column.xlsx<br />08:55:30 Peak memory usage: 1.75 MB<br />08:55:30 Done writing file<br />File has been created in /var/www/html/national-parameters/vendor/phpoffice/phpexcel/Examples<br />