Published Jul 16, 2025
Microsoft 365 Copilot Chat will support new file types like CAD, ZIP, and MP4 for search grounding, enhancing response relevance. The rollout begins late August 2025, completing by mid-September. No user interface changes; feature is on by default and requires eligible Microsoft 365 Copilot Chat licenses.
Updated July 23, 2025: We have updated the timeline. Thank you for your patience.
Introduction
We’re expanding the file types supported in Copilot Chat to align with the Microsoft Search experience. This enhancement allows users to ground their questions in a broader range of content types, improving the relevance and accuracy of Copilot responses.
This message is associated with Roadmap ID 492268.
When this will happen
General Availability (Worldwide): We will begin rolling out in late August 2025 (previously late July) and expect to complete by mid-September 2025 (previously mid-August).
How this will affect your organization
Users will be able to ask Copilot questions about additional file types, including CAD, ZIP, and MP4. This update enhances Copilot’s ability to retrieve and reason over content from a wider variety of files, improving productivity and search flexibility.
There are no changes to the user experience with this update — the feature enhancement is entirely on the back end and will not alter the Copilot interface or behavior for users.
This feature will be on by default.
What you need to do to prepare
No action is required at this time. However, to take advantage of this feature, users must be licensed for Microsoft 365 Copilot Chat. Eligible licenses include:
Note: Versions labeled "(no Teams)" and "EEA (no Teams)" are also supported.
Learn more:
Compliance considerations