How to Perform Multiple Queries on an Excel Spreadsheet. Using the External Data Connection feature in Excel, you can acquire information from external sources, such as Access and SQL Server. The ...

SEE: Explore 6 ways to save time using Flash Fill in Microsoft Excel. How to use Power Query to parse data in Microsoft Excel Power Query is available to Microsoft Excel 2010 users and later.

If your source data is in Excel and has duplicates, run Power Query to remove those duplicates before running a Word mail merge.