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Tim asks: My colleagues can use the XIRR function, but it does not appear to be available in my version of Excel.

XIRR is one of the financial and engineering functions available in the Analysis Toolpack. To enable it, do the following steps:

  • Tools > Add-Ins...
  • Check the selection for Analysis Toolpack
  • Click OK

From that point on, XIRR will be available to you. If Analysis Toolpack is not in the list of available Add-Ins, then someone did a custom or minimal install of your Excel. Get the install CD's, do a custom install, and be sure to check the Analysis Toolpack during install.

By Bill Jelen on 03-Feb-2002 Consulting can be hired to implement this concept, or many other cool applications, with your data. provides examples of Visual Basic procedures for illustration only, without warranty either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose. The Visual Basic procedures on this web site are provided "as is" and we do not guarantee that they can be used in all situations.


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