Creating a Pivot Table in Sharepoint

Pivot Tables are one of the most powerful features that Microsoft has ever developed for MS Office. Initially it only formed part of Excel, but due to it's popularity it was eventually converted to a "Service" that could be used in Word , Access and many other applications. With the advent of "Excel Services" in MOSS 2007 Enterprise edition, we can now use pivot tables in Sharepoint, running server side.

fonte: http://grounding.co.za/blogs/neil/archive/2007/12/29/creating-a-pivot-table-in-sharepoint.aspx