If you've ever tried building a product catalog in Excel, you know the headache — images float over cells, they don't move ...

Microsoft's Excel program, widely used in business, comes with many built-in functions that perform mathematical and logical operations on spreadsheet data. In Excel, functions are simple formulas you ...

As I showed in my first Excel functions article, the serious meat in any spreadsheet is the formulas and functions that perform the calculations. Excel offers functions that you can use to make the ...