See how to enable Power Pivot in Microsoft Excel 2013 add - in. By default it's not enabled. Power Pivot is used to make data analysis in Microsoft Excel.
Follow these steps -
1. Start Microsoft Excel 2013
2. Go to File > Options > Add-Ins.
3. In the Manage box, click COM Add-ins> Go.
4. Check the Microsoft Office Power Pivot in Microsoft Excel 2013 box, and then click OK.
Figure 1