Data Transformation with Power Query

In this lesson, we will learn data transformation with Power Query in Excel. We will understand how to import data from different sources, clean columns, change data types, filter, split, merge, append, and refresh queries through practical examples. ## Lesson objective In this lesson, we will learn data transformation with Power Query in Excel. In the previous lesson, we covered Pivot Charts and Dashboard Basics. We learned how to create charts from Pivot Table results, build KPI cards, create interactive dashboards with slicers, and understand dashboard layout logic. Now we move to a more powerful tool for data preparation in Excel: Power Query.