MDS 2012 Excel add-in installation error

I'm trying to install the SQL Server 2012 RTM Master Data Services excel add-in (32 bit) on Windows 7.  Windows 7 and Office 2010 (32 bit) are all on the latest builds/service packs.  However I'm getting an error during installation "These prerequisites are not installed:  Microsoft .NET Framework 4.0 Extended 32-bit version of Microsoft Excel 2007 or 2010.  All prerequisites can be installed from:http://go.microsoft.com/fwlink/?LinkId=219530.  I checked the control panel and I seem to have .NET Framework 4.0 Extended  installed with the version 4.0.30319.  I repaired and also removed and re-installed .NET Framework 4.0 and was unable to resolve the issue.