XML Bursting with Template as "Excel"

 Hi,Am working on  XML Bursting with template as "rtf" and completed the task successfully.

Got one more requirement with template type as "excel" where am getting some issues.

Designed the excel template using fusion middlewasre concept and attached to the application using XML Administrator Responsibility.

Here is my control file.

<?xml version="1.0"  encoding="UTF-8"?>

<xapi:requestset xmlns:xapi="http://xmlns.oracle.com/oxp/xapi">

<xapi:request select="/ReportName/Immediate Group">

<xapi:delivery>

<xapi:email id="email123" server="${CF_SERVER_ADDRESS}" port="25" from="dd@ff.com" reply-to="${CF_REPLY_TO_ADDRESS}">

<xapi:message id="email123" to="dd@ff.com" cc="" attachment="true" subject="vvvvvvvvvvvvvvvvvv">