Microsoft brings Word, Excel and PowerPoint into the Copilot app, starting with early-access customers
Since October 9, Copilot can create Word, Excel and PowerPoint files and open them for editing beside the chat. It starts with Frontier, Microsoft’s early-access program.
On October 9, 2026, Microsoft began rolling out Office in the Copilot app, with Word, Excel and PowerPoint built into the app itself. It comes first to customers in Frontier, Microsoft’s early-access program for new Copilot features, and works from both Chat and Cowork in the app. Microsoft hasn’t said when everyone else gets it.
You describe what you need, and Copilot creates a document, workbook or deck that opens in an editing view beside the conversation. From there you can keep prompting or edit directly, and share, comment and co-author with colleagues without leaving that view. A new Library lists recent Office files, whether they were made in Copilot or in the Office apps, and you can carry on in the standalone apps whenever you prefer. Files are saved in OneDrive. According to Microsoft, they keep their formatting, comments, sharing permissions and version history, and they inherit the organization’s security labels and compliance controls.
What it means for your work
For organizations on Microsoft 365, this shows the direction Microsoft has chosen for everyday document work: the chat becomes the starting point, and the Office apps open inside it. A draft that starts in a chat needs the same review as any other, with its figures checked against the files they came from.
What to check
The questions are familiar ones: who can open each file, and whether its sensitivity label is right before Copilot works with it. If your organization isn’t in Frontier, there is time to tidy up shared folders and labels before this arrives. Microsoft’s Frontier page also says its features are experimental and may change, that in organizations the admin settings decide who gets them, and that early features start in English for subscribers in the United States.
Sources
This page is educational and is not legal advice.