Calculate the how long it will take to pay off your credit card balance based on how much you pay toward it every month.
Calculate your monthly budget (and more).
Calculate ROI on an investment given the interest rate, taxes, additional contributions, inflation, etc.
Income tax rates for each state in the U.S.
Help complete your Federal Income Tax Form 1040 using an Excel spreadsheet.
A spreadsheet to help you figure out how to pay things off and reduce debt.