Table of Contents
Summary
- Agent Mode in Microsoft 365 Copilot for Excel enables natural language interaction for building and editing workbooks.
- Users can access Agent Mode from the M365 Copilot Chat pane and it will be available by default for eligible users.
- The feature supports editing capabilities in Excel, including tables, charts, and formulas, without requiring changes to admin policies.
- No admin action is required, but it’s recommended to inform helpdesk and update internal documentation about this new capability.
Admin Impact: Low
User Impact: Medium
Release Start: 15 Jan 2026
Release End: 01 Mar 2026
Services: M365 Copilot
Category: Stay informed
Tags: New Feature, User Adoption, Admin Action
History
12/22/2025 Item Added to Message Center
Microsoft Message
Introduction
Agent Mode in Microsoft 365 Copilot for Excel, available in Excel for Windows and Excel for Mac, introduces a new way for users to work with Copilot in Excel. It uses natural language to build and edit workbooks, keeps content editable, and ensures users stay up to date with the latest changes. Agent Mode can search the web to pull in trusted, up-to-date information to complement Excel data, answer questions, provide context, and enrich analysis without leaving the workbook. It also supports working with Claude AI models from Anthropic to build workbooks directly in Excel.
This message is associated with Microsoft 365 Roadmap ID 542182.
When this will happen
General Availability (Worldwide): Rollout will begin in mid-January 2026 and is expected to complete by early March 2026.
How this will affect your organization
Who is affected: All Microsoft 365 users licensed for Copilot who use Excel.
What will happen:
- Users will be able to access Agent Mode in Excel from the M365 Copilot Chat pane by selecting it from the Tools menu.
- Agent Mode will be available by default for eligible users.
- The feature supports Excel capabilities such as editing tables, charts,
- PivotTables, formulas, and more.
- No changes to existing admin policies are required.
- Some geographies may receive access later in the rollout window.
What you need to do to prepare
- No admin action is required.
- Agent Mode respects your Admin Center data access settings for Copilot web search.
- Agent Mode in Excel is a method for using M365 Copilot Chat to interact with your active workbook and is not a Microsoft 365 Copilot agent that needs to be managed from the Admin Center.
- You may wish to:
- Inform helpdesk and support teams about the availability of Agent Mode.
- Update internal documentation or training materials to reflect this new capability.
Learn more:
- Agent Mode in Excel | Microsoft Support
- Anthropic as a subprocessor for Microsoft Online Services | Microsoft Learn
- Use Claude with Agent Mode (Frontier) in Excel | Microsoft Support
Compliance considerations
No compliance considerations identified. Review as appropriate for your organization.