Excel makes it simple to change a few variables and see the way it impacts the most important thing. MS Excel, on the flip side, can do each the things Word may not. Fortunately, Microsoft Excel has a built-in function made to compute the mean. It is a popular spreadsheet program used for organizing tables, budgets and keeping tabs on all kinds of data. Thus, the very first step would be to double check Excel's list of native functions to see whether there is already one which may do the calculations you're thinking about.