Yasai - YASAI is an open-source Monte Carlo simulation add-in for Microsoft Excel
Lumenaut - The Lumenaut Excel software add-in features a Monte Carlo simulation software package, a Decision...
@RISK - @RISK is the world's most widely used risk analysis tool.
Invantive Control for Excel - Invantive Control enables you to make decisions with Microsoft Excel and yet remain fully compliant...
MC FLO - MC FLO is a add-in which make it easier to make decisions using the Monte-Carlo simulation approach.
TreePlan - TreePlan helps you build a decision tree diagram in an Excel worksheet using dialog boxes.