Not sure what additional features you're after but you can use Excel functions within Access code if you set a reference to Excel. It's not a simple matter of just pasting in the function formula as if you were doing so in a cell. I've found that you have to know its parent (which I believe is the worksheet) and its vba name. I have only done this 2 or 3 times. Look at the Excel object model for a start?
Office Object Model
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.