Excel's Copilot function is headed for the Recycle Bin
Microsoft is killing Excel's native Copilot function — doubling down on the side-pane UI instead.
Why it matters
A major Microsoft Office product is consolidating its AI surface area. Practitioners using Copilot in Excel for in-cell automation will need to migrate to the side-pane interface; this signals Microsoft's bet on a unified conversational AI layer rather than embedded formula-level agents.
The key facts
8 to knowExcel Copilot function being deprecated
Microsoft standardizing on side-pane Copilot UI across Office
Shift away from in-cell autonomous formula generation
Consolidation of AI surface area in productivity suite
Microsoft discontinuing dedicated Copilot function in Excel
Consolidating AI interface to side-pane model
Reflects broader UX strategy shift in Office AI integration
Published August 17, 2026
Go to the source
The Register AI/MLtheregister.com
Publisher excerpt: Microsoft realizes the side pane should be enough for anyone