Head over to the Excel Developer Center and find out how to utilize the SDK to expand and simplify Excel!

http://msdn.microsoft.com/en-us/office/aa905411.aspx

Professors

Excel is widely used by managers and people who hire, having the knowledge of how to not only use Excel, but to program it is a super benefit for your students during the interview cycle.

College Students

Think about it: What do managers use everyday?  Excel, being able to talk about Excel is an excellent conversation during the interview cycle!