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  1. Calculate the difference between two dates - Microsoft Support

    How to calculate the number of days, months, or years between two dates using the DATEIF function in Excel.

  2. Calculate age - Microsoft Support

    Jun 3, 2002 · Excel can help you calculate the age of a person in different ways. The table below shows common methods to do so, using the Date and time functions. To use these examples …

  3. DATEDIF function - Microsoft Support

    Excel provides the DATEDIF function in order to support older workbooks from Lotus 1-2-3. The DATEDIF function may calculate incorrect results under certain scenarios.

  4. Add or subtract dates - Microsoft Support

    Add or subtract days, months, or years from a date by using a formula or date functions in Excel.

  5. Subtract dates in Excel for Mac - Microsoft Support

    Jun 8, 2011 · When you have to find the number of months between dates that fall in different years, you can use a formula that determines the number of years between the two dates, …

  6. How to calculate compound interest for an intra-year period in …

    Oct 14, 2025 · Intra-year compound interest is interest that is compounded more frequently than once a year. Financial institutions may calculate interest on bases of semiannual, quarterly, …

  7. PMT function - Microsoft Support

    Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter.

  8. YEAR function - Microsoft Support

    Jul 5, 2023 · Returns the year corresponding to a date. The year is returned as an integer in the range 1900-9999. Values returned by the YEAR, MONTH and DAY functions will be Gregorian …

  9. IRR function - Microsoft Support

    This article describes the formula syntax and usage of the IRR function in Microsoft Excel. Description Returns the internal rate of return for a series of cash flows represented by the …

  10. Calculate an average - Microsoft Support

    Excel provides a variety of ways to find the average of a set of numbers. For example, you can use function to calculate a simple average, a weighted average, or an average that excludes …