How to make a Three Dimensional graph using Excel?

[Dadu]

Can somebody indicate me how I can made a trhee dimensional graph with excell. I want to have growth rate combined with Light ant temperatur

 

[johno]

Excel offers the ability to plot lines on an xy scatter graph so a classic way to try to plot three variables would be to use a contour plot similar to topo maps. A simpler way with a more limited data set would be to plot circles of varying diameter.