Super Stock class calculator Excel spread sheet??

[Bench Racer]

Several years ago someone posted on the forum a Super Stock calculator that was made on Excel and could be down loaded. It was awesome and easy to use. Just put in the shipping weight and factored horsepower, hit enter and magic happened. Due to a computer crash and a misplaced memory stick I am up the creek without a paddle or a canoe. I searched the other day on Google and found dead links. I searched here ( and possibly due to my ignorance ) found nothing. If anyone has the calculator and is willing to share it you would be greatly appreciated. Don Jackson, AKA Bench Racer.