Hi Suresh Chitirala,
As far as I know, Power Pivot add-in cannot be used with your version of Microsoft Office 2013.
These add-ins and the Inquire add-in all require specific SKUs of Microsoft Office 2013.
They are available on:
- Microsoft Office 2013 Professional Plus
- Microsoft Office 365 ProPlus available as a standalone subscription.
- Microsoft Office 365 ProPlus available as part of the Office 365 Enterprise E3, Office 365 Enterprise E4, Office 365 Education E2, Office 365 Education E3, Office 365 Government
E3, or Office 365 Government E4 offerings.
- Microsoft Excel 2013 standalone with the following update
http://support.microsoft.com/kb/2817425
Please refer to this KB article:
https://support.microsoft.com/en-us/kb/2805999/en-us?wa=wsignin1.0
About Power Pivot add-in for Excel 2010 you can refer to this link:
https://support.office.com/en-us/article/Power-Pivot-Add-in-a9c2c6e2-cc49-4976-a7d7-40896795d045
Hope it's helpful.
Regards,
Emi Zhang
TechNet Community Su