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How to compare two full columns without #SPILL error in new Excel?

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Are you frustrated with Excel's #SPILL! error when trying to compare two full columns? In older versions, a straightforward formula like =A:A=B:B worked seamlessly, allowing you to identify matches and differences effortlessly. However, with the introduction of dynamic arrays in newer Excel versions, this method no longer functions as expected. Fortunately, there’s a simple solution that doesn’t involve complex formulas, VBA, or conditional formatting. Keep reading to discover an easy way to compare columns A and B without the hassle of errors.

I need to compare two columns (A:A and B:B) row-by-row to identify matches and differences.

In older Excel versions, I used =A:A=B:B which worked perfectly - it compared entire columns and auto-adjusted when I inserted/moved rows.

In newer Excel (with dynamic arrays), this formula returns #SPILL! error.

I know there's a solution (I used one successfully in mid-2025 but lost the formula. I've asked two diff AI Models but they cant solve it. I'm looking for something SIMPLE not conditional formatting or VBA or long ass formulas that I dont have any idea what's happening.

Can anyone help?

submitted by /u/GothamKnight3
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