Setting content type

I am using servlet to display an Excel file to the browser.hence,for the same I need to set the content type.
I make an object of file by:
File file = new File("abc.xls");
response.setContentType(application.getMimeType(file.getName()))which is giving the output as a garbled value.That is,it is not able to set the content type.
but when I am using
response.setContentType("application/vnd.ms-excel");It sets the content type.
Any idea what is wrong with the first syntax?????//

I think what you wrote and what I wrote is same.
anyhow,the problem got solved using:
response.setContentType(application.getMimeType(file.getName()));I added the following in web.xml
<mime-mapping>
<extension>xls</extension>
<mime-type>application/vnd.ms-excel</mime-type>
</mime-mapping>

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I think RowOrdinal is the problem. You can try below suggestion:
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/634b3f24-b009-415d-8b45-40c11105b803/bug-in-creating-more-columns-in-sharepoint-list-filters?forum=sharepointdevelopmentlegacy
Hemendra:Yesterday is just a memory,Tomorrow we may never see
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Setting content type

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