Power Pivot is an Excel add-in where you can create sophisticated data models and use to perform powerful data analysis. It is a data analysis tool which provides an extension to Pivot Tables. You can mash up large volumes of data from various sources, perform information analysis rapidly and share insights easily with Power Pivot.
The data model you see in a workbook in Excel is the same data model you see in the Power Pivot window. Any data you import into Excel is available in Power Pivot, and vice versa.
Power Pivot is basically a SQL Server Analysis Services engine made available using an in-memory process that runs directly within Excel. Workbooks that you modify with Power Pivot can be shared with others in all the ways that you share other files. You get more benefits, by publishing your workbook to a SharePoint environment that has Excel Services enabled. On the SharePoint server, Excel Services processes and renders the data in a browser window where others can analyze the data.
Once the Power Pivot add-in is installed and available, you can create a data model meaning that the first step is to import some data which is a collection of tables with relationships. Any data you import into Excel or already have in Excel, once added to the data model is available in the Power Pivot window. The Power Pivot Ribbon gives you additional functions over and above the standard Excel Data tab.
The Power Pivot Free add-in saves you time and effort, when working with Excel pivot tables. You can save a pivot table layout, summary function, and number format, and then apply them to any pivot table. This add-in allows you to work with more than 1,048,576 rows and can work on data from multiple sources.
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