Microsoft 365 Copilot Chat and Microsoft 365 Copilot: Users can insert cloud files in Copilot chat prompts

Updated April 17, 2025: We have updated the rollout timeline below. Thank you for your patience.

Coming soon to the Web tab in Microsoft 365 Copilot and in Microsoft 365 Copilot Chat: Users will be able to use the Attach cloud files feature to access Microsoft One Drive or Microsoft SharePoint to find and insert cloud files in their prompts. Before this rollout, the Attach cloud files feature opened Windows Explorer.

This message applies to Copilot on the web and Copilot in the Windows desktop app.

Users can access this feature with a Microsoft 365 Copilot license or a Microsoft 365 license.

This message is associated with Microsoft 365 Roadmap ID 481139.

When this will happen:

General Availability (Worldwide): We will begin rolling out late April 2025 (previously early April) and expect to complete by late May 2025 (previously mid-April).

How this will affect your organization:

After this rollout, users will find this feature in the Copilot chat box. If users have a Work and Web tab in their Copilot experience, this feature is on the Web tab. Users can select + Add content and then select the cloud icon in the top right corner to display the option to Upload cloud files:

The Attach cloud files feature on the Web tab in Microsoft 365 Copilot:

The Attach cloud files feature in Microsoft 365 Copilot Chat:

What you need to do to prepare:

This rollout will happen automatically by the specified dates with no admin action required before the rollout. Review your current configuration to determine the impact for your organization. You may want to notify your users about this change and update any relevant documentation.

Learn more: Get started with Microsoft 365 Copilot Chat - Microsoft Support