SmartView integration is a reporting tool that enables you to create ad hoc reports in Excel, Word, or PowerPoint by using BI subject areas. BI subject areas are predefined data sets that contain the business metrics and attributes that you can use to create reports and analyses. SmartView integration allows you to access the BI subject areas from within the Microsoft Office applications, and use the familiar features and functions of those applications to create and format your reports1.
Reference:
Overview of SmartView Integration