3-PG for Excel
The excel version of 3-PG is currently developed by Peter Sands and is non spatial spreadsheet version of the 3-PG algorithms.
Information for a single plot is entered into a number of different sections in the required spreadsheet pages, and then the simulation is run from an inbuilt macro. The excel version is very useful for quickly refining model parameters for species and sites, and then using those values in the more computationally intensive spatial models of 3-PG.
Note that as with all version of 3-PG, the simulation only predicts growth for one species of tree. A version for mixed species interactions is available here.