16:58:45 Write to Excel2007 format<br />16:58:45 File written to 33chartcreate-column.xlsx<br />16:58:45 Peak memory usage: 6 MB<br />16:58:45 Done writing file<br />File has been created in /home/akacsystem/facturacion.akacsystem.com/vendor/phpoffice/phpexcel/Examples<br />