Goodbye to the AI function you could ask directly in Excel cells?

Imagine this: You are facing a complex spreadsheet, and you type “draw an average revenue graph with this data” into an Excel cell as if casting a magic spell, and an AI appears to solve the problem for you. The =COPILOT() function, introduced experimentally to Excel users over the past year, was intended to offer exactly that kind of convenience. Unfortunately, it is time for us to say goodbye to this “AI in a cell.”

Why does this matter?

For analysts and office workers who use Excel daily, this change is quite significant. The =COPILOT() function was designed as a tool that allowed users to ask questions in natural language within specific Excel cells and obtain results by referencing data. According to an explanation from Microsoft Support, this feature was an innovative attempt to help users immediately populate cells with results through AI without having to learn formulas one by one.

However, the news of this service discontinuation goes beyond simply removing a feature; it demonstrates how Microsoft is adjusting its AI strategy. The planned official launch for 2027 has been scrapped, and the feature is disappearing into history after completing only its preview period.

Understanding it easily

Why remove such a function? It is easy to understand with an analogy. Think of two types of ‘remote controls’ when watching TV in your living room: one is a ‘smart home control panel’ that pops up on the side of the TV screen, and the other is a method of commanding the TV by directly entering inputs into small ‘number buttons’ on the remote.

The =COPILOT() function was closer to the latter. It was a method of directly entering commands into the narrow space of a cell. However, Microsoft has decided to favor the ‘side pane’ method that always floats next to the Excel screen. In short, they judged that complex commands are much more efficient when exchanged in a side pane where the entire dataset can be viewed, rather than in the narrow space of a cell. It is similar to how using an entire whiteboard is better for sharing ideas than taking notes in a small pocket notebook.

The side pane provides an environment where you can have conversations immediately next to your work without opening separate windows while you are handling data. This is a structure like a “working partner” that allows you to receive continuous AI assistance without breaking your workflow while using Excel. In contrast, the method of entering inputs into a cell resulted in just the value being left there, which had many limitations in developing data insights while sharing the entire context of the data with the AI.

Current situation

Microsoft first introduced this feature in August 2025 and has conducted tests for about a year targeting participants in ‘Insider’ or ‘Frontier’ programs. However, as of September 14, 2026, the feature has been officially terminated. Now, the AI will no longer respond when you call the function.

Of course, AI is not disappearing from Excel entirely. Microsoft is recommending that existing users use the side pane to receive the same AI assistance. Analysts will now analyze data while conversing with the AI with a broader view through the side pane instead of writing formulas in cells.

What happens next?

Due to the sudden removal of the feature, companies that had built manuals or business processes based on the ‘=COPILOT()’ function may be slightly flustered. Some experts advise that related documentation and internal guides should be updated immediately. While there may be some confusion in the process of adapting to the new way of working, the move to a stable platform like the side pane is expected to create a better analysis environment in the long term.

In the future, Microsoft is expected to provide AI in a more integrated form across its entire Office suite, not just Excel. This change signifies a shift in direction from ‘experimental in-cell functions’ to a ‘side pane that encompasses the entire platform.’ It is time for us users to learn how to handle AI more effectively within the Excel interface to match the changing environment. It is a change that, like switching from a manual transmission vehicle to an automatic one, provides a much more comfortable experience once you get used to it.

MindTickleBytes AI Reporter’s Perspective

The idea of “AI in a cell” was very novel, but this case shows that a more intuitive interface was needed in the actual worksheet environment. I believe the retirement of this feature is not a failure, but a process of evolution toward a better user experience (UX). Technology continues to advance and is in the process of finding the place most suitable for us.

References

1. [Microsoft Cancels COPILOT Function in Excel

   Bill Jelen…

   LinkedIn](https://www.linkedin.com/posts/billjelen_the-short-lived-copilot-function-made-for-activity-7495425203603226624-D6fH)

2. [Microsoft Copilot

   Windows Central](https://www.windowscentral.com/artificial-intelligence/microsoft-copilot)

3. [Microsoft removes the COPILOT function from Excel

   Hacker News](https://news.ycombinator.com/item?id=49706481)

4. Microsoft is pulling the plug on Excel’s COPILOT function after…
5. Frontier =COPILOT function in Excel will no longer available…
6. Microsoft Kills Free Copilot Chat in Word, Excel and… - Office Watch

7. [COPILOT Function

   Microsoft Support](https://support.microsoft.com/en-us/excel/functions/copilot-function)

8. Microsoft is ditching the COPILOT function in Excel before it even launches
9. Microsoft Pulls the Plug on Excel’s COPILOT Function After One Year
10. Microsoft Just Killed a Copilot Excel Feature in 2026

11. [Microsoft is dropping its Excel Copilot function after only a year - and without ever getting a full public launch

    TechRadar](https://www.techradar.com/pro/microsoft-is-dropping-its-excel-copilot-function-after-only-a-year-and-without-ever-getting-a-full-public-launch)

12. Excel’s Copilot function is headed for the Recycle Bin
13. Microsoft is scrapping the =COPILOT function from Excel after only a year since its release
14. Microsoft is dropping its Excel Copilot function after only a year - and without ever getting a full public…
15. Excel’s Copilot Function Is Headed for the Recycle Bin