Allows to calculate the intrinsic value of a stock by just simply entering a couple of financial data, that you can get from the websites I recommend in my Article. How to find the relevant financial data.This Spreadsheet calculates the intrinsic value with 3 different methods and includes the prefered method by Warren Buffet the Discount Cash flow method ( DCF). 
 
Calculate the fair value or instrinsic value of stock to determine if a stock is overvalued or undervalued. This is the best way to invest by value investing and basing your decision on company fundamental rather than trends.