Love, love, love what you put together!!!
I had one minor problem with it, and can’t figure out why it’s not working for me — in the area calculation, the trees one works, but the shrubs and groundcover cells don’t change the area amount. The nozzle portion of the spreadsheet worked great! I’m still on Windows 7 and using MSOffice 2007 (yes, I know that I am WAY overdue for an update, on my list of things to do). Being so far out of date might be my problem.