Microsoft has quietly moved generative AI from the Copilot side‑pane into Excel’s calculation engine itself, with a new COPILOT function that lets you call Copilot from any cell, pass natural‑language prompts and cell ranges as context, and receive live, recalculating outputs that behave like native Excel formulas. Background
Excel has been absorbing AI features for months, but most have lived in side‑panes, chat experiences, or experimental add‑ins. The COPILOT function marks a distinct...