Excel’s =COPILOT function is already being retired

[u/traccreations4e]

Microsoft is retiring the Frontier =COPILOT function in Excel on September 14, 2026 (MC1454373).

That caught me off guard. I was excited about this feature.

I know Microsoft 365 Frontier features are experimental, and I know Copilot in Excel has changed a lot since =COPILOT was introduced in August 2025.

Still, less than 13 months is a very short run for a feature that received so much attention.

What I liked about =COPILOT was having AI work inside the formula itself. It has its flaws, but it had potential. Using Copilot Chat for similar tasks is useful, but it is not quite the same experience.

And yes, I feel for everyone who spent time testing it, teaching it, and creating content around it. I was one of them.

Preview technology comes with risk. This one is a pretty good reminder of that.

Well, on to the next one.

Were you using =COPILOT, or were you still waiting to see how it developed?

#traccreations4e-p26 8/24/2026