uddav wrote:
[...]
In the "conf" directory of your Tomcat installation is a file called
web.xml.
That file contains a section which tells Tomcat about the correspondence
between file extensions and their "mime type".
Check if it contains a section like this one :
<mime-mapping>
<extension>xls</extension>
<mime-type>application/vnd.ms-excel</mime-type>
</mime-mapping>
If not, add it, restart Tomcat and retry.
When Tomcat (like other webservers) sends data to a browser, it tells it
what kind of data this is, via a HTTP header sent along with the data.
The browser should normally accept this information, and handle the
received data accordingly.
Now, if the browser you are using is Internet Explorer, it is possible
that even when the webserver tells it what kind of file it is sending
(like "application/vnd.ms-excel" above), IE in it's wisdom might do its
own check and decide otherwise. I would not be surprised if even for an
Excel file it got it wrong.
In that case, you might want to try the same link with Firefox, just to
check.
There also exist tools, for IE and Firefox, which allow you to see
exactly what the server is sending to the browser in terms of
"description of the file". If your problem persists, you might want to
use one of those to find out for sure.
Firefox : LiveHttpHeader add-on
IE : Fiddler2 (search Google)
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