10:25:46 Write to Excel2007 format<br />10:25:46 File written to 33chartcreate-column-2.xlsx<br />10:25:46 Peak memory usage: 2 MB<br />10:25:46 Done writing file<br />File has been created in /var/www/html/Luca/vendor/phpoffice/phpexcel/Examples<br />