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RM552591Microsoft Copilot (Microsoft 365): Upload Local Files now Support .eml and .msg file types

Summary

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

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