Posted inMicrosoft 365 apps

MC1519841: Microsoft OneNote Adds CSV and TSV File Support to Copilot Notebooks

3 minutesPosted inMicrosoft 365 apps
MWPRO IMPACT SCORE
OPERATIONAL IMPACT
40
0 25 50 75 100
MODERATE IMPACT • ASSESS BUSINESS IMPACT
Recommended Action:
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Primary Audience

Microsoft 365 AdminsTeams AdminsIT ManagersService OwnersEnd Users
Why this score?
AI Confidence
HIGH
Enough detail is available to trust this assessment.
Assessment Reasoning
The feature enables CSV and TSV files as knowledge sources in Copilot Notebooks, expanding data types available for content generation. Rollout is in progress and requires no configuration, only awareness for affected users. Admin effort is minimal, focused on communication, while user impact is moderate due to the new workflow capabilities. Urgency is moderate because the rollout is already underway and completes within the month.
30
🛡️ Admin Impact
MEDIUM
45
👥 User Impact
MEDIUM
55
⚡ Urgency
HIGH
25
🔧 Effort
MEDIUM
ℹ️ WHAT YOU NEED TO KNOW
📌

AT A GLANCE

OneNote Copilot Notebooks can now use CSV and TSV files as knowledge sources, improving how structured data informs generated content.
👥

END USERS

Users can reference CSV and TSV files directly in Copilot Notebooks when generating content.
🛡️

IT ADMINS

Inform users who work with structured data that CSV and TSV sources are now supported in Copilot Notebooks.
📅

ROLLOUT TIMELINE

Rolling out:
October 2026

📢 Official Microsoft Message Center Announcement

Microsoft OneNote: CSV and TSV references in Copilot Notebooks
Message ID: MC1519841

[What and why]

We are introducing support for using CSV and TSV files as knowledge sources in Microsoft Copilot Notebooks. This enhancement allows users to add structured lists and tabular data directly to notebooks alongside existing document types. By including CSV and TSV content as reference material, Copilot can generate more relevant and informed outputs such as presentations, reports, briefs, and other content grounded in both structured and unstructured data.

[Rollout schedule]

  • Public Preview (Worldwide): Rollout has completed.
  • General Availability (Worldwide): Rollout began in mid-October 2026 and is expected to complete by late October 2026.

[Impact on your organization]

Who is affected

  • Organizations with Microsoft 365 Copilot and access to Copilot Notebooks in OneNote.
  • Users who work with CSV and TSV files as part of their Copilot workflows.

Platforms and services

  • Microsoft OneNote
  • Microsoft 365 Copilot
  • Copilot Notebooks

What will happen

  • Users will be able to add CSV and TSV files as knowledge sources in Copilot Notebooks.
  • Copilot will use data contained in these files alongside other referenced content when generating responses and content.
  • The feature will be enabled automatically for tenants that already allow Copilot to reason over CSV and TSV files. No additional configuration will be required.

[Action required and recommendations]

No action is required. We recommend that you notify users who work with structured data that they can reference CSV and TSV files directly within Copilot Notebooks once the feature becomes available.

[Compliance considerations]

No compliance considerations identified. Review as appropriate for your organization.

Source: Microsoft Message Center • Analysed by MWPro

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