Business Intelligence with Microsoft Power BI - with Material - Appending Multiple Files from a Folder

The video tutorial demonstrates how to append multiple Excel files from a folder into Power BI. It covers the process of importing files, transforming data, and using custom columns to extract and expand data. The tutorial also explains how to refresh data in Power BI to include new files added to the folder, ensuring that charts and visuals are automatically updated.

What should you do if unwanted prefixes appear in the column names after expanding the data?

How can you ensure that newly added files in the folder are automatically updated in Power BI?

What is the significance of the 'count rows' feature in Power BI when working with multiple files?