Did you know that data analysts spend up to 80% of their time cleaning and preparing data? If you’re nodding in agreement, you’re not alone. The good news is that tools like Power Query in Excel and ...

Merge lists even with typos and inconsistent names. Tune the similarity threshold, use a transform table, and audit results before loading.

Microsoft Power BI uses measures the same way Microsoft Excel uses functions. Learn how to recognize them in use and how to manipulate them when you want something different. Image: dennizn/Adobe ...