I'm not trying to be a naysayer but I downloaded this and I don't see much difference from the calculations at demigoddb.com. You even said you're pulling in the same data so I'm trying to understand what you're trying to accomplish.
Do people not know about the 'Calculator' tab at demigoddb.com?
The template idea is a cool one but I see trouble with keeping your file up to date with all the theory builds that pop up on the forums. Currently I just pull up the DB site and select the abilites and items they mention in the post and look at the stats.
Again, I'm not dogging on you, just trying to grasp the vision.