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How to use the PivotTable Fields pane in Microsoft Excel

You can create a PivotTable in Excel from an external data source, a table in your worksheet, or a pre-built data model. To ...
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Using Excel PowerPivot for data modeling in spreadsheets

If your are wondering how to handle large datasets and complex calculations in your spreadsheets. This is where MS Excel PowerPivot comes into play. PowerPivot is an advanced feature in Excel that ...