How to draw a cone and it's Frustum in 3D in Excel

[anupambit1797]

Dear Experts,

                    Can some one please help me , with how to draw a Frustum(part of a Cone) in Excel in 3D,

Definition as below for Frustum , choose any values for R1,R2,and h.

Thanks in Advance,

Br,

Anupam