I am using display tag to export to excel.

I installed export filter in web.xml as below

<filter>
<filter-name>ResponseOverrideFilter</filter-name>
<filter-class>org.displaytag.filter.ResponseOverrideFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>ResponseOverrideFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>

<filter-mapping>
<filter-name>ResponseOverrideFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>

 I created displaytag.properties file and changed properties as follows
export.excel=true
export.excel.label=Excel
export.excel.include_header=false
export.amount=page
export.decorated = false
export.excel.filename=filename.xls

when I click on "Excel", I do get pop up window asking if I want to save to a file or open. But when I click on open, an excel window is opened, but tableModel is not exported.

I am using displaytag-1.0.jar and displaytag-el-12.tld. My jsp page is just straingt forward with export set to true at table level.

Why can't I export to excel, what am I missing . Attached are the xls file after I exported to excel and screen pritn of my web page. Not able to attach files