Has anyone done spreadsheets for calculating unit stats? I keep meaning to do them, but I don't have a good enough grasp of the math (particularly for GoW) to feel confident in doing it right. Given the amount of math involved, some sort of Unit Builder would be helpful software.

I know I’ve seen a spreadsheet that did this, but can’t find it right now.

If you prefer a .net program, the ACKS toolkit I wrote a while back has a tab for calculating unit stats, including BR.