Power Query in Microsoft Excel is a data transformation and preparation tool that lets you import, clean, and reshape data from various sources with ease.
It’s like a Swiss Army knife for data wrangling—think of it as a way to automate tedious manual tasks like filtering, merging, or reformatting, all without writing complex formulas or VBA.
Introduced in Excel 2010 as an add-in and fully integrated by Excel 2016 (Windows), it’s now a core feature for anyone dealing with messy or external data.