Hello,
I am trying to export excel file from VF page which contains report chart. But I am not able to do that. Please help me. my code is given below:
<apex:page id="page" showHeader="false" Sidebar="false" contentType="application/vnd.ms-excel#SalesForceExport.xls" cache="true">
    <apex:pageBlock id="results" >
         <analytics:reportChart reportId="00O90000007RacK"/>
    </apex:pageblock>
</apex:page>