Use Power Query's M language to quickly fix names, remove hidden characters, extract numbers, and merge columns.

Have you ever found yourself tangled in a web of Excel formulas, trying to clean up messy datasets or make sense of inconsistent entries? If so, you’re not alone. Many of us have spent countless hours ...

Have you ever spent hours wrestling with messy spreadsheets, trying to clean up data that just won’t cooperate? Or maybe you’ve found yourself manually merging files, painstakingly copying and pasting ...

Replace broken brackets in Excel with clear, flexible Power Query rules that handle real-world data effortlessly.

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 ...

In 2026, data analysis roles still depend heavily on two practical tools: Excel for cleaning, checking, and working through business data, and Tableau for turning that data into dashboards people ...

Excel spreadsheets do so much, from making lists to crunching numbers to acting as sophisticated flat-file databases. We’re creating this guide to make sure you master all the essentials and more.