13:45:03 Write to Excel2007 format<br />13:45:03 File written to 33chartcreate-column.xlsx<br />13:45:03 Peak memory usage: 6 MB<br />13:45:03 Done writing file<br />File has been created in /home/akacsystem/facturacion.akacsystem.com/vendor/phpoffice/phpexcel/Examples<br />