Targets beginning to intermediate Excel users seeking real--world examples of how they can use Excel's powerful built--in functions Shows readers how to use Excel functions in formulas to help them decide between buying and leasing a car, calculate mortgage costs, compute grades, evaluate investment performance, figure college expenses, and more Gives explanations and examples of real--world situations Provides an abbreviated discussion of an additional 200 functions Excel commands nearly 90 percent of the market for spreadsheet applications; although this book is written for Excel 2003, the functions described are in earlier versions as well