Data Pilot is specially created to expand data analysis options
available in Microsoft Excel with nonparametric statistical methods.
The statistical methods used in the application provides the most
relevant results even with small numbers of samples (3 or more
observations), without any assumptions on distribution of the original
sample. This is especially important when analyzing biological
information or when doing expensive or difficult to replicate
experiments. The tight integration with Microsoft Excel allows users
take advantage of the full potential of the program for entering data
and creating reports.
Data Pilot works with Excel 97, 2000, XP and, most likely, the future
versions of Excel.
http://www.colorpilot.com/datapilot.html