Power Plus Pro is a piece of financial software produced by Reuters Group in the form of an addin for Microsoft Office Excel. A real-time , it pushes new data into Excel when it receives notification of updates from a Reuters TIBCO bus or from Thomson Reuters' RMDS. This commonly involves live market data, such as stock prices, from a financial exchange. Using the addin, Excel can also contribute information to the TIBCO bus or to RMDS; such information then becomes available to other permissioned users using the addin on another computer or using Reuters 3000 Xtra stand-alone software. Power Plus Pro also has features which allow retrieval of historical market data.