A new Copilot feature has been added to Excel for Windows and Mac, specifically the generative AI (genAI feature has been integrated into the engine used for calculations, according to the Microsoft 365 Insider blog. (The feature is not yet generally available — it’s rolling out to users in the Beta Channel of the Microsoft 365 Insider program and requires a Microsoft 365 Copilot license.)

The addition means, among other things, that every time a user makes a change, the result should change automatically without the need to re-run scripts or reload extensions.

In the YouTube video below, Microsoft explains how it works.

To use the new Copilot feature, users need to be running version 2509 (Build 19212.20000) or later of Excel for Windows, or version 16.101 (Build 25081334) or later for Mac.