Stop Rewriting Formulas : Handle Functions Like Data in Excel and Power Query

Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.
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You need to know the difference between a range and an array in Excel

Excel processes the range (A1:A10) by converting it into an array in memory. This array is what Excel works with to calculate the sum. The distinction is subtle but important: while the range is the ...
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How not to use rolling return charts!

Rolling return charts have recently become popular among DIY investors and advisors for mutual fund analysis. However, few ...

AI Infrastructure: Buy The Buildings, Not The GPUs

Pure-play power infrastructure providers gain from long-term U.S. power scarcity and durable, low-risk AI returns. Learn why ...

How to create an automated Budget in Excel

We show you how to create a budget or personal finance dashboard in Excel to keep your expenses in sync with reality. Useful ...