With a single connected data model of data, creating analysis, pivot tables and insights becomes easy. Relationships are activated only when the related data is required, eliminating the constant recalculation of formulas. By doing this, we can replace hundreds of thousands of formulas with a single relationship, making model maintenance exceptionally easy. Instead, Power Pivot allows us to build simple relationships between tables of related data, creating what is known as a data model. Not only are these formulas resource-intensive every time Excel recalculates them, but they need to be maintained and free from errors. When working with large data sets, this can result in tens of thousands of rows of formulas, with a new column required for every additional piece of information. Traditionally, combining related data in Excel relies on formulas like VLOOKUP, INDEX & MATCH. But for analyzing large amounts of data, we can often end up with many millions of rows of data. For model building and formulas, this isn’t usually a problem. The current capacity of an Excel worksheet is just over a million rows. Power Pivot uses the DAX formula language, allowing users to make use of variables and powerful context manipulation.With Power Pivot, users can pull in large volumes of data from multiple sources and easily create relationships between them.

Power Pivot is an Excel add-in that brings business intelligence techniques into the heart of Excel.

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