First, open your .MPP(X) file in Excel using the Open command on the Project menu in @RISK for Excel. The Project schedule, Gantt chart, and values are imported into Excel. Once the schedule is displayed in Excel, the new workbook can be saved on its own. When the workbook is opened later, the associated .MPP(X) file is automatically opened and linked to the workbook. You can still build your schedules in Project, and then use @RISK for Excel to perform your risk analysis.