XLSTAT plug-in for Microsoft Excel facilitates data manipulation in the field of statistics. It is possible to create an XLSTAT toolbar to facilitate handling and integration. It is capable of performing factor analysis, ACP, AFD, AFC or others. It also offers various regression methods and tests. Other functions are available but it will take time to discover them all. As it works on Mac, it is not compatible with Excel 2008. A demo version can be downloaded if you want to get an idea of its full potential.