MC1202968 – Agent Mode in Excel for Windows and Mac (archived)

Product:

Copilot, Microsoft 365 admin center, Microsoft 365 Apps, Microsoft 365 Copilot, Windows

Platform:

Mac, Online, Web, Windows Desktop, World tenant

Status:

Launched

Change type:

New feature, User impact, Admin impact

Links:

542182

Details:

Summary:
Agent Mode in Microsoft 365 Copilot for Excel (Windows and Mac) enables natural language interaction to build and edit workbooks, integrates web search for updated data, and supports Claude AI models. It rolls out worldwide from mid-January to early March 2026, requires no admin action, and respects existing data access settings.

Details:
[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.

Change Category:
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Scope:
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Release Phase:
General Availability

Created:
2025-12-23

updated:
2025-12-23

Task Type

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Docu to Check

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MS How does it affect me

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MS Preperations

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MS Urgency

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MS workload name

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linked item details

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summary for non-techies**

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Direct effects for Operations**

User Experience Disruption
Users may experience confusion or frustration due to the introduction of new features without prior training or documentation updates, leading to decreased productivity.
   - roles: End Users, Helpdesk Support
   - references: https://support.microsoft.com/office/agent-mode-in-excel-a2fd6fe4-97ac-416b-b89a-22f4d1357c7a, https://learn.microsoft.com/microsoft-365/admin/manage/manage-copilot-agents-integrated-apps?view=o365-worldwide

Increased Support Requests
The rollout of Agent Mode may lead to an increase in support requests as users encounter issues or have questions about the new functionality, overwhelming helpdesk resources.
   - roles: Helpdesk Support, IT Support Staff
   - references: https://support.microsoft.com/topic/use-claude-with-agent-mode-frontier-in-excel-b2c3b3ec-154b-484b-84d0-914a80df395a, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=542182

Data Access Concerns
Users may inadvertently access or share sensitive data through the web search feature, leading to potential data privacy issues if not properly informed about data access settings.
   - roles: End Users, Data Compliance Officers
   - references: https://learn.microsoft.com/copilot/microsoft-365/connect-to-ai-subprocessor, https://learn.microsoft.com/microsoft-365/admin/manage/manage-copilot-agents-integrated-apps?view=o365-worldwide

Configutation Options**

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Opportunities**

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Potentional Risks**

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Data Protection**

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IT Security**

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Hypothetical Work Council Statement**

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DPIA Draft**

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explanation for non-techies**

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