M365 Archive

RM552591 - Microsoft Copilot (Microsoft 365): Upload Local Files now Support .eml and .msg file types

Microsoft 365 Roadmap

Summary

Users will now be able to upload .eml and .msg files and share it as context with Copilot Chat and M365 Copilot App.

Roadmap ID

552591

View in M365 Roadmap

Last Updated

Apr 13, 2026

Published Jan 28, 2026

Status

Launched

Release

General Availability

Platforms

Desktop
Web

Service

Microsoft Copilot (Microsoft 365)

Tag

Launched
General Availability
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Description

Users will now be able to upload .eml and .msg files and share it as context with Copilot Chat and M365 Copilot App.

GA date: February CY2026