https://github.com/Heliomance/HeroForge-Anew/releases
run in exel, or the free spreadsheet kingsoft-office-suite-free http://www.kingsoftstore.com/kingsoft-office-freeware.html
seems to be a self calculating char sheet, does all the math for you, very detailed, look at the right hand side tab for classic sheet,
PS don't forget its a spreadsheet, so when opening it be in spreadsheet mode, not word processor