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Copilot Data & Privacy Issues

Can a Copilot Agent Retrieve Embedded Files from OneNote?

Maira MehtabMaira Mehtab Sep 22, 2026 869 views

Question details

The user needs to know if a Copilot agent can retrieve and process Word, PowerPoint, and Excel files that are embedded within OneNote pages.

Product
Microsoft Copilot / OneNote
Device & OS
not provided
Scenario
Developing or configuring a Copilot agent to process complex documents and attachments embedded in OneNote.
Observed behavior
Needs a programmatic method or workflow to successfully extract and read embedded attachments for Copilot processing.
Before you start

Ensure you have developer access to the Microsoft Graph API and the necessary application permissions (such as Notes.Read.All) configured in Microsoft Entra ID.

Solution 1Recommended

Use Microsoft Graph API to Extract Embedded Files

Since native Copilot retrieval might not directly parse all embedded attachments automatically, using the Microsoft Graph API allows your agent to programmatically extract and process these files.

To enable your Copilot agent to read embedded files, you will need to build a custom integration using Microsoft Graph. The Graph API provides the necessary endpoints to access OneNote content, locate the embedded files, and download them so your agent can process their contents separately.

1
Query OneNote Pages

Use the Microsoft Graph API endpoint to retrieve the specific OneNote pages containing the embedded files you want to access.

2
Extract Attachments

Identify the embedded Word, PowerPoint, or Excel files within the page's HTML structure or resource metadata provided by the API response.

3
Download and Process

Download the extracted files programmatically and feed them into your Copilot agent's data processing pipeline.

4
Seek Developer Support

For specific implementation guidance, post your architecture questions in Microsoft Q&A using the 'Microsoft Copilot' and 'Microsoft Copilot for Microsoft 365 Development' tags.

Developer Resources Required: Building this capability requires integrating Microsoft Graph with your Copilot agent's architecture, which involves custom development and handling API authentication.
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Frequently Asked Questions

Can Copilot natively read files embedded in OneNote without Graph API?

Currently, standard Copilot interactions may struggle to deeply parse heavily nested or embedded files in OneNote natively. Utilizing the Microsoft Graph API to extract them programmatically is the recommended workaround for custom agents.

What permissions does the Graph API need to read OneNote files?

Your application will typically require Notes.Read or Notes.Read.All permissions delegated through Microsoft Entra ID (formerly Azure AD) to successfully access and retrieve OneNote page content and its attachments.

Where can I get help building a Copilot agent for Microsoft 365?

The best place to seek technical implementation guidance is the Microsoft Q&A platform. Be sure to use the 'Microsoft Copilot for Microsoft 365 Development' tag to reach the appropriate developer community and Microsoft engineers.