494834 – Microsoft Copilot (Microsoft 365): New file extension for Copilot pages

Product:

Copilot, eDiscovery, Purview Communication Compliance, Purview Information Protection

Platform:

Multi-Geo, US Instances, Web, World tenant

Status:

Launched

Change type:

Links:

MC1085134

Details:

We are introducing a new file extension for Copilot pages, ".page". This new file extension will continue to support admin toggles, sensitivity labels, data loss prevention, multi-geo, Purview eDiscovery, version history, export, audit logs, and data subject requests. The functionality and support for the .page file extension will be identical to the existing .loop file extension, with the only difference being the file extension and the associated file icon. For a comprehensive list of features supported refer to: Summary table of admin management, governance, lifecycle, and compliance capabilities based on experience

Change Category:
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Scope:
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Release Phase:
General Availability

Created:
2025-05-29

updated:
2025-10-18

Docu to Check

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MS workload name

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More Info URL

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summary for non-techies**

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Direct effects for Operations**

Please, look at the most relevant linked item for details

explanation for non-techies**

Microsoft is introducing a new file extension called ".page" for Copilot pages, which will work similarly to the existing ".loop" file extension. Think of it like switching from using a .doc file to a .docx file in Microsoft Word. The core functions and capabilities remain the same, but the file extension and the icon that represents it are different.

The ".page" extension will continue to support various administrative and compliance features, such as sensitivity labels and data loss prevention, much like the ".loop" extension does. This means that from a management and compliance perspective, nothing changes except for the file name ending and the icon you see on your screen.

Imagine you have a set of keys that open different doors in your office. Whether the key is on a blue keychain or a red one, it still opens the same door. The ".page" extension is like changing the keychain color—it looks different, but it functions the same way.

For those who handle data governance and compliance, the introduction of the ".page" extension means you can continue to use the same tools and processes as before. This change is designed to be seamless, ensuring that all existing functionalities, such as version history and audit logs, remain intact. If you need a detailed comparison of the features supported by the ".page" extension, Microsoft provides a summary table that outlines all the management, governance, lifecycle, and compliance capabilities.