RM559614 - Microsoft Copilot (Microsoft 365): Copilot improved long files navigation using document structure, enabling more accurate answers and clearer citations.

We’ve improved how Copilot reads long and complex files by making it more aware of document structure. When you ask a question, Copilot can now navigate to the most relevant parts of your document (for example, specific sections/pages) before answering—helping reduce missed details and improving confidence with clearer citations that are easier to trace back to the source.

GA date: July CY2026