hello if you wish to provide an alternative, and people to use it, it must behave faster than whatever it is out there, or at least faster the common methods, and more affordable comparing it to specialized methods ...
for example : if someone enters all those coordiantes inside igf, will definetly get the code faster
yes, you can do the math, but, you need to beat current methods
xls is ok for some stuff, but for rad comp, igf is faster ...
think about a method that is faster than igf, like an okuma dedicated G-code converter, with fast cad / kindly