To set up a RiskEase application with links to risk variables and model results made to external workbooks you should first open all the workbooks in a window format inside Excel. To achieve this you should click on the double window icon at the top right corner of the Excel workspace. You can then select each workbook when executing a “Set Links” or “Model results” operation. However, setting links to multiple workbooks is not advised as it will complicate and possibly slow down the simulation. It is always better to add new sheets to an existing workbook instead.