Microsoft Copilot (Microsoft 365): [Copilot Chat] Email attachment summarization (Modern Attachments, Item Attachments)
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Users will be able to reason over additional attachment content, along with the email body, in Copilot Chat. Support will be extended to Word, Excel, PowerPoint, Pdf, Text, Json and Xml files mentioned in the email as links (Modern Attachments). Additionally, other item attachments, such as email threads, will also be supported. Product Outlook Release phase General Availability Release date September CY2025 Platform Web Cloud Instance Worldwide (Standard Multi-Tenant) Created 2025-07-31 Roadmap ID 499657 Roadmap Link https://www.microsoft.com/microsoft-365/roadmap?id=499657
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