I'm using Excel to keep track of my bowling scores. I can do the basic stuff with sums and averages and whatnot, but I need some help with some more complicated stuff.

I want to account for when I bowl more or less than 3 games a session. For example, if I only bowl one game and get a 180, I don't want it to think my average is 60.

I already started a basic spreadsheet if anybody wants to help me with what I'm trying to do. (Feel free to add more stuff like graphs and whatnot and make it look better if you feel like it)
Thanks in advance! :woop:

Download bowling.xls