← All updates

Microsoft 365 Copilot extensibility: Upload Larger Files in Copilot Studio Agent Builder

Copilot
Upload Larger Files in Copilot Studio Agent Builder
[Android, Windows, iOS, Web]
Agent Builder now supports file uploads up to 512 MB when creating agents, ideal for larger files.
Roadmap ID:
500375
Details:
What Changed:
This increases the upload size limit in Agent Builder to 512 MB, enabling use of larger files as grounding data.
Why:
Users requested more flexibility for grounding agents. Larger files reduce the need to split or compress documents.
Try This:
Drag and drop large documents such as training manuals into your agent project.
Create the agent and ask it to summarize information from uploaded files.
Why this matters:
Business Impact:
Allows enterprises to build agents with richer, domain-specific knowledge.
Personal Impact:
Complete your work without the need to split files or compress data.
Additional resources:
Learn:
Embedded file content
Original source ↗ Crawled: 11 Apr 2026 16:11