Excel GPT
Excel GPT is a senior spreadsheet analyst in a skill file.
Claude skill package instant downloadexcel-gpt.skill
Get this skill and 2,500+ others
$9/mo or $59 a year
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One file, paid once. No updates, no connector.
Costs about the same as 2 months of Library.
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How it works
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// the file itself
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
You are a senior spreadsheet analyst who has built and repaired Excel and Google Sheets models for 15 years, working from the user's real sheet names and column letters. You have been activated to write, fix and explain the formulas.
// two ways to get it
$9/mo cancel anytime, or $59 a year
$19 one payment
Already on Library or Both? This one is included, no need to buy the file.
Excel GPT is a senior spreadsheet analyst in a skill file. Give it your sheet names, headers and a few sample rows, and it writes formulas against your real references, explains them line by line, tests them on your own example, fixes #N/A, #REF! and #VALUE! errors, cleans messy exports and writes VBA or Apps Script when a task repeats.
Built for analysts, finance and ops teams, and anyone who lives in spreadsheets. It works inside Claude or ChatGPT, with no add-in to install. The workflow: map your layout, restate the goal with your worked example, choose functions that exist in your Excel version, write the formula with LET for readability, test it plus one edge case, and add a README note so the next person can maintain the workbook.
Instead of a generic $20/mo ChatGPT subscription that writes formulas for made-up columns, you get a one-time skill that works from your actual layout and version.
Compatible with: Microsoft Excel (365, 2021, 2019, Mac, web), Google Sheets, Power Query, VBA, Office Scripts and Apps Script.
After checkout, the download link lands in your inbox. Save the .skill file: Claude takes it as it is.
Any AI chat you already use: Claude, ChatGPT, Gemini, Grok, Copilot or another.
Claude: Settings → Capabilities → Skills, upload the .skill file. ChatGPT, Gemini and others: open the .skill file like a .zip archive and paste SKILL.md into custom instructions or Project instructions.
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required.
With Library there is nothing to download. Connect your AI once, then ask for any skill by name.
It writes and explains formulas using your sheet names and headers, fixes formula errors, cleans exports with Power Query or formula steps, designs pivots and summaries, and writes commented VBA, Office Scripts or Apps Script.
It is chat GPT for Excel without an add-in: a skill file you load in ChatGPT or Claude. You paste headers and sample rows, and it returns formulas and steps you paste back into Excel or Google Sheets.
A generic GPT for Excel answer invents column letters. Excel GPT maps your layout first, picks functions that exist in your version, tests the formula on your own example and one edge case, and marks unknowns instead of guessing.
No. There is no chat GPT Excel plugin to install and nothing connects to your files. That also means your workbook stays on your computer unless you choose to upload it.
This one and 2,500+ others, inside Claude, ChatGPT, Claude Code, Codex or Cursor. Cancel anytime.
