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The Pareto Principle, also known as the 80-20 rule, is a powerful concept that can transform your approach to data analysis. This principle states that roughly 80% of effects come from 20% of causes.

Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.

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 ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Return on investment (ROI) measures the amount of ...

For the Microsoft Power BI report designer, importing Microsoft Excel data is a common task. Once in Power BI, you analyze and report on that data. Occasionally, you might need to export a Power BI ...