Measure shapes in excel

Hi,

i can create different shapes in excel using freeform in insert.

Firstly is it possible to create the user defined shape as a shape which i can use without having to redraw it time and again.

Secondly is it possible to resize the shape based on the value of cells, for example

let us assume oval is a shape which i have created using freeform,then based on a list of data which gives the length and the width of the oval shape

i want the shape to be made of that size.

Is that possible???