Continuing my efforts towards a utilitarian policy, here are some links to some sites, which provide free Add-ins, and packages. You may use them, by agreeing to the License Agreements specified in each.
I’ve used many, and they are worth a try, if you don’t have enough funds to buy those rocket-scientist’s quant packages.
PopTools [Good for Matrices and Simulations]: http://www.cse.csiro.au/poptools/index.htm
FreeStatistics [Decide what you want before opening this link caz you will be amazed by the choice provided]: http://freestatistics.altervista.org/stat.php
ASAP Utilities [Are you deep into Excel-based Modelling, you will need this, for cleaning and maintaining data sheets]: http://www.asap-utilities.com/blog/index.php/beta#download
Go ahead, start number crunching in a better way…
But, if you have some doubts on Statistics, go to,