17:22:35 Write to Excel2007 format<br />17:22:35 File written to 33chartcreate-multiple-charts.xlsx<br />17:22:35 Peak memory usage: 1 MB<br />17:22:35 Done writing file<br />File has been created in /home/bjgrgao/www/cuaderno/PHPExcel_1/Examples<br />