🎯 What you'll have at the endYou'll have an AI assistant inside Excel that can build, explain and check your spreadsheets.

⚡ One-click install

Checked install page (app stores, official sites and template pages): tap to get it straight away.

⬇️ Get Claude for ExcelMicrosoft Marketplace

🧰 Before you start

A paid Claude plan (Pro, Max, Team or Enterprise)
Excel 2016 or later (Windows/Mac) or Excel on the web

⏱️ Time needed10 minutes

💵 Rough costPaid Claude plan (Pro from about USD 20/month)

🪜 Step by step

🐣 Beginner mode: showing the 7 essential steps only. Extra steps are hidden; tap 🚀 Advanced at the top to see all 7.

✅ 0 of 7 steps done 📄 Printable page

1
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Install the add-in
Click the install button on this page and choose Get it now. (An add-in is a small extra that adds features to Excel.)
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2
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Open Excel
Open a workbook. Find Claude under Home > Add-ins (Windows) or Tools > Add-ins (Mac).
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3
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Sign in
Sign in with your Claude account. A panel opens on the right.
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4
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Ask about your sheet
Try: 'Explain what this workbook does and how the main numbers are calculated.'
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5
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Build or change a model
Use the feasibility prompt below to build a property investment model.
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6
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Check its work
Ask Claude to audit the workbook for errors, then check key numbers yourself.
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7
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Save a copy first
Always work on a copy of important files.
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💬 Copy-paste prompts

Tap Copy prompt, paste it into your AI (Grok, ChatGPT, Claude or Gemini), then replace the [yellow bits] with your own details.

💬 Property feasibility model

Build a property investment feasibility model on a new sheet.
Inputs (in a yellow input section): purchase price [MYR], stamp duty and legal fees [%], renovation [MYR], loan amount [%], interest rate [%], loan term [years], monthly rent [MYR], vacancy [%], service charge and maintenance [MYR/month], annual rent growth [%], holding period [years], exit price growth [%].
Outputs: monthly cash flow, gross and net yield, cash-on-cash return, 10-year cash flow table, IRR, and a sensitivity table for rent vs interest rate.
Use formulas (not hard-coded numbers) and label everything clearly.

💬 Audit my workbook

Check this workbook for errors: broken references, hard-coded numbers inside formulas, inconsistent formulas across rows, totals that don't add up, and assumptions that look unrealistic. List each issue with the cell reference and how to fix it.