R2 Copilot for Excel

Get it: Microsoft marketplace listing WA200006007, published by Stealth Mail. Rated 4.7 out of 5 across 21 ratings. Install steps.

What it does#

• Build formulas from a description of the result you want.
• Discover trends and analyse dependencies between data sets.
• Get recommendations on what the numbers suggest, in natural language.
• Explain someone else's sheet — what a formula does and which cells it depends on.

Why it matters that the sheet stays private#

A spreadsheet is usually the most sensitive file in the room: customer lists, salaries, pricing models, forecasts. The privacy question is not theoretical, and it is the reason this add-in exists rather than a generic chatbot with a copy-paste box. See How R2 keeps content private.

Limits worth knowing#

• Prompts and tokens come out of your plan's shared monthly pool; long sheets consume more tokens than short questions. Plans and pricing.
• Closing the panel ends the session and discards its content.

Next#

• Word — the same assistant in documents.
• What is stored and what is not.