Excel 2007 : Interactive Excel?

Hi all
I don't know if it's possible or not, I want my excel spreadsheet that uses "Choose", "Index" & "Match" in it's calculations to open with Internet explorer with all it's functions intact.

I have attached my spreadsheet so that you might better understand what's involved. The reason i want it to open in IE is to hide all the formulas from my customers.

Thanks in anticipation

October 2009 Prices.xlsx