I had need to develop methods for manipulating large arrays of data in a particular way and settled on using Bezier Surfaces. After looking for a way to view these easily, I found Andy Pope's 3D x,y scatter graph through this forum. Having adapted it a little to display these surfaces, I though I'd post up an example for you to have a play about with.
I've put a few example 'control point' sets in the spreadsheet but the possibilities are infinite; just put in the x,y,z co-ordinates of 25 control points and see what surfaces appear!
This is by no means a robust application of any sort, just a bit of fun I thought I'd share.
Many thanks to Andy Pope for the 3D Scatter chart!