cfprocessingdirective pageencoding also not working

Hi

I use the below code to export the data from ldap query to excel

<cfheader name="Content-Disposition" value="attachment; filename=Report.xls">

<cfcontent type="application/vnd.ms-excel">

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

But special characters appears as (?) symbol is excel sheet even though it displays correctly in browser

In Browser:

In Excel:

I even tried using <cfprocessingdirective pageencoding="utf-8" />

But still it appears same..

Pls advice