Excel's Copilot entry points are being consolidated into a single, consistent location with the right-side chat pane as the primary interface. Rollout starts late April 2026 (worldwide) and October 2026 (GCC). No action is required; the feature remains on by default for licensed users.
Applies to: Microsoft 365 apps · Microsoft 365 Copilot Chat
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).