20:09:52 Write to Excel2007 format<br />20:09:52 File written to 33chartcreate-column-2.xlsx<br />20:09:52 Peak memory usage: 1 MB<br />20:09:52 Done writing file<br />File has been created in /home/bjgrgao/www/cuaderno/PHPExcel_1/Examples<br />