4dcbfdca____Alan_Whitehouse_s_Ramblings__Description_Usage
[Component Item] PowerPivot for Excel [Link] Link [Description/Usage] 
A free add-in available for Excel that allows processing and analyzing of massive amounts of data within the Excel environment with easy linking to numerous different data sources. The power and manageability of PowerPivot for Excel can be expanded by utilizing PowerPivot for SharePoint.
The Microsoft Business Intelligence Stack Cheat Sheet « Alan Whitehouse's Ramblings
Description/Usage