= How do I add-in the ''analysis toolkit'' into EXCEL (and other statistical add-ons)? = The analysis toolkit beefs up EXCEL's statistical capabilities allowing for example the analysis of one and two-factor analysis of variance. It is not usually in the EXCEL menu by default and so needs to be added in using the ''add-ins'' option under the ''tools'' menu. If successful the ''Data Analysis'' option will be available at the bottom of the ''tools'' menu. Details of how to install the toolkit are given [[http://www.brynmawr.edu/Acads/GSSW/Vartanian/excelinstructions.pdf|here.]] A free to download add-on created by Charles Zaiontz is available from [[ http://www.real-statistics.com/ | here]] which extends the range of statistical methods that can be performed in EXCEL (covers version 2007+). There is also free downloadable add-on software called RExcel which allows R routines to be used within EXCEL. This is available from [[http://rcom.univie.ac.at/download.html | here.]] Note: Rcmdr gives a very similar gui interface to RExcel, using tcl scripts, in R (rather than in Excel) which will allow the reading in of Excel data files (and those in formats from other software such as SPSS) into R.