Welcome to TwistlyCells
TwistlyCells (listed on the Microsoft AppSource marketplace as GPT for MS Excel) is an AI add-in that works inside Excel. It adds a family of AI.* worksheet functions — you write them like any other formula, and they fill cells with AI-generated answers: translated text, extracted fields, classified rows, generated tables, web-researched facts.
Because they are ordinary formulas, they live in your workbook, recalculate like formulas, and can be frozen into plain values whenever you want.
Where TwistlyCells works
Excel for Windows
Excel for Mac
Excel for the web
TwistlyCells needs a recent Excel build — the AI.* functions rely on capabilities that older versions don't have. If the ribbon button never appears, see Install & Open.
Try it free
Every new user gets 100 free AI function calls and 10 assistant messages — no payment details required. See Free Trial & Credits.
Where to go next
Install the add-in
Understand how the formulas work
Look up a specific function
Try one without typing it
Ask the assistant for help
Compare plans
Use my own provider account
Fix a problem
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