>Is there a way to pass Excel data, whether it be XML or a cursor and have Excel Populate the spreadsheet itsself? I have to write a program that exports some survey data to a spreadsheet. The program needs to work for multiple surveys, existing or future. The surveys will have different Questions with different numbers of answers.

Jim,
You could pass data to Excel in many ways. A simple one is to save the data in CSV format.
Cetin