Custom form in outlook 2010 need excel control

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I am trying to create a custom outlook form that has an excel spreadsheet, so that I can include a spreadsheet on that form. I do not find an option to add the microsoft excel spreadsheet control when I r click on the controls oolbox I do not get an option for excel spread sheets.


How do I do this in outlook 2010? I have found references in earlier versions but can't seem to figure it out in 2010.

Thanks!