导出Execl 报错，麻烦高手 救救我，分数多多，谢谢

Question

导出下载Execl的时候报如下错误
Fatal error: Uncaught exception 'com_exception' with message 'Failed to create COM object `Excel.Application': Server execution failed ' in D:\websites\db.faw-vw.com\administrator\components\com_nurun_test_order\controllers\test.php:304 Stack trace: #0 D:\websites\db.faw-vw.com\administrator\components\com_nurun_test_order\controllers\test.php(304): com->com('Excel.Applicati...') #1 D:\websites\db.faw-vw.com\libraries\joomla\application\component\controller.php(235): TestController->backup() #2 D:\websites\db.faw-vw.com\administrator\components\com_nurun_test_order\admin.nurun_test_order.php(40): JController->execute('backup') #3 D:\websites\db.faw-vw.com\libraries\joomla\application\component\helper.php(161): require_once('D:\websites\db....') #4 D:\websites\db.faw-vw.com\administrator\includes\application.php(130): JComponentHelper->renderComponent('com_nurun_test_...') #5 D:\websites\db.faw-vw.com\administrator\index.php(87): JAdministrator->dispatch('com_nurun_test_...') #6 {main} thrown in D:\websites\db.faw-vw.com\administrator\components\com_nurun_test_order\controllers\test.php on line 304麻烦高手看一下，在线等着。谢谢

Answer 1

<?               header( "Content-type:application/vnd.ms-excel ");               header( "Content-Disposition:filename=test.xls "); 
while(){              echo   $uname."\t ";               echo   $utel."\t";               echo   $uQQ."\t";               echo   $uEmail."\t";               echo   $uaddress."\t\n "; 
}
    ?>