AI + Spreadsheets
Excel and AI: Complete Guide (2026)
AI is changing how people work in spreadsheets faster than any Excel update in the past decade. Here is what actually works today — and what is still hype.
What You Can Do Right Now
- Fastest win: Paste any Excel error message into ChatGPT with your formula — it explains the problem and writes the fix.
- Best built-in AI: Microsoft 365 Copilot writes formulas, runs Python analysis, and answers questions about your data — requires M365 Business + Copilot add-on.
- Free formula writing: Formula Bot and Ajelix generate correct Excel formulas from plain-English descriptions at no cost.
AI Tools for Excel Users
Microsoft 365 Copilot
Built-in- ✓Generate formulas from plain English ("sum sales where region is North and month is January")
- ✓Write Python code for data analysis directly in Excel cells
- ✓Analyse your data and surface trends, outliers, and summaries
- ✓Answer questions about your spreadsheet in a chat sidebar
- ✓Create pivot table summaries by voice command
Limitation: Requires Microsoft 365 Business plan + Copilot add-on (~$30/user/month). Not available in personal M365 subscriptions.
Learn more →ChatGPT / Claude
External AI- ✓Write complex formulas from a description of what you want
- ✓Explain what any formula does in plain English
- ✓Debug broken formulas — paste the formula and error message, get a fix
- ✓Generate VBA macros from a description of the task
- ✓Suggest better approaches when your formula is getting too complicated
Limitation: You copy-paste between Excel and the AI — no direct integration. Always verify formulas on test data before applying to real datasets.
Full guide →Formula Bot
Specialist Tool- ✓Generate Excel and Google Sheets formulas from plain English
- ✓Explain any formula in simple terms
- ✓Convert between Excel and Google Sheets formula syntax
- ✓Generate SQL queries and regex patterns
- ✓Free tier available for basic formulas
Limitation: Focused on formula generation only — does not analyse your actual data or offer broader AI assistance.
Learn more →Ajelix
Specialist Tool- ✓AI formula generator with Excel and Google Sheets support
- ✓VBA script generator — describe a task, get working VBA code
- ✓Formula explainer — paste any formula and get a plain-English breakdown
- ✓Template library with AI-generated starting points
Limitation: Primarily a generation tool — useful for writing code you then paste into Excel, not for directly analysing your data.
Learn more →Python in Excel
Microsoft added native Python support to Excel 365 — the biggest technical change to Excel in years. You write Python directly in cells using =PY().
Python runs in Microsoft's cloud — your data is sent to Azure for processing, then results come back to Excel.
pandas, matplotlib, seaborn, scikit-learn, statsmodels — the full data science stack.
Type =PY( in a cell, write Python code, press Ctrl+Enter. Results appear directly in your Excel sheet.
Statistical modelling, machine learning, complex visualisations, data transformations that would need hundreds of formulas.
Real-time calculations, workbook automation, interacting with other apps, tasks VBA handles well.
Microsoft 365 (Business and Enterprise). Currently in GA — no preview subscription needed.
ChatGPT Prompt Templates for Excel
Copy, adapt, and paste these into ChatGPT or Claude. The more specific you are about your data structure, the better the output.
Write a formula
I have a table in Excel. Column A is order date, column B is region, column C is sales amount. Write a formula that sums column C only where column B is "North" and column A is in January 2026.
Fix a broken formula
This Excel formula returns #VALUE!: =SUMIFS(C:C,A:A,">="&DATE(2026,1,1),A:A,"<="&DATE(2026,1,31)). What is wrong and how do I fix it?
Explain a formula
Explain what this Excel formula does in plain English: =IFERROR(INDEX($B$2:$B$100,MATCH(1,(A2=$C$2:$C$100)*(D2=$E$2:$E$100),0)),""
Write a VBA macro
Write an Excel VBA macro that loops through all sheets in a workbook, finds cells containing the word "DRAFT" in column A, and highlights them in yellow.
What AI Still Cannot Do in Excel
- ⚠Understand business-specific logic embedded in your data — what "complete" or "approved" means in your context
- ⚠Audit a complex multi-sheet workbook for logic errors (it reads the formula, not the intent)
- ⚠Spot data quality problems that require domain knowledge to identify
- ⚠Write reliable VBA that interacts with custom COM add-ins or external systems
- ⚠Replace the judgment call of knowing which formula approach fits your actual use case
Deep-Dive Guides
How to Use ChatGPT to Write Excel Formulas
12 proven prompt templates for XLOOKUP, SUMIFS, IF statements, and complex nested formulas.
Read guide →
Microsoft Copilot in Excel: What It Can Do
What Copilot actually does in Excel — and the honest limitations to know before subscribing.
Read guide →
Excel Formulas Hub
Every essential formula with full guides — once you understand the syntax, AI output becomes much easier to verify.
Read guide →
Best Excel Tools (2026)
AI formula generators ranked alongside traditional add-ins.
Read guide →
Frequently Asked Questions
Can AI write Excel formulas?
Yes — reliably for standard formulas (XLOOKUP, SUMIFS, IF statements). Always verify on a small test range before applying to real data. The fastest workflow: describe what you want in plain English, paste the result into Excel, test it.
What is Microsoft Copilot in Excel?
An AI assistant built directly into Excel 365 that generates formulas, writes Python code, analyses data, and answers questions about your sheet. Requires a Microsoft 365 Business plan with the Copilot add-on (~$30/user/month).
Is Python in Excel replacing VBA?
Not immediately — VBA still handles workbook automation and legacy macros better. Python in Excel is better for data science tasks using pandas, matplotlib, and scikit-learn. For new automation projects, Python is the forward-looking choice.
What Excel tasks can AI not do yet?
AI still struggles with understanding business-specific logic in your data, auditing complex multi-sheet workbooks, and writing VBA that interacts with custom external systems. These require human judgment — AI accelerates, not replaces, expertise.