14:39:02 Write to Excel2007 format<br />14:39:02 File written to 33chartcreate-multiple-charts.xlsx<br />14:39:02 Peak memory usage: 1 MB<br />14:39:02 Done writing file<br />File has been created in /home/bjgrgao/www/cuaderno/PHPExcel_1/Examples<br />