And here's the download link for anyone that wants it. It works for me, if there are any problems with it, let me know.
You just have to fill in your own data for tyre wear and fuel consumption from previous races.
If you get stuck with it, or don't quite understand a part of it, you can always PM, or leave a message here and we can increase the general knowledge base :)
Problem with the formulas 'should' be fixed now I hope.
Sorry dude...I fill my data for tyre and fuel from previous race, then the file should make some kind of prediction for next races or it's a sort of notepad where i can find data for next time i race in a track? :)
Did you fill in the data section Francesco? on the right hand side, there's a table of values for previous results. If you have that filled in, then when you enter the data for the track and drivers with how many laps you want to do, it should update automatically.
If you did that, and it still doesn't work, then I've made an error with the upload.
@John Smith, glad it was able to help you out :) (haven't checked this in ages, sorry for the late reply.)