12:15:18 Write to Excel2007 format<br />12:15:18 File written to 33chartcreate-column-2.xlsx<br />12:15:18 Peak memory usage: 1 MB<br />12:15:18 Done writing file<br />File has been created in /home/bjgrgao/www/cuaderno/PHPExcel_1/Examples<br />