Data cleaning is a crucial step in the data analysis process. Inaccurate, incomplete, or inconsistent data can lead to flawed insights and poor decision-making. Fortunately, Excel 365’s Power Query ...

Q. There was a December 2020 article in the JofA about cleaning and joining data using a program called Alteryx, but we don’t have access to this program. Could you explain how to do those tasks using ...

Learn how to use Excel Power Query's extract and split column features to extract delimited strings into their components with this step-by-step tutorial. You might receive foreign data in the form of ...

Standard Excel lookups are perfectionists that fail on typos or extra spaces. While you could hack a solution using nested XLOOKUP, TRIM, and LOWER functions, it's brittle and hard to maintain. Power ...

PowerQuery is a powerful tool in Excel that allows you to import, clean, and analyze data from various sources. One of the key features of PowerQuery is its ability to refresh data automatically, ...

Simplify your data transformation by skipping complex parsing expressions and instead using Flash Fill and Power Query in Microsoft Excel. Image: IB Photography/Adobe Stock If you work with imported ...

Have you ever stared at a beautifully organized table in Excel—rows and columns perfectly aligned—only to realize it’s a nightmare for analysis? Cross-tab layouts, while visually appealing, can feel ...

is a senior editor and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft is overhauling Excel with the ability to support custom live data types.