This is the complete hub for using AI tools inside Excel. It covers ChatGPT, Claude, Microsoft Copilot, Google Gemini, and open-weight models like Gemma 4 — across formula writing, data analysis, macro generation, forecasting, text analysis, and industry-specific workflows. Every linked tutorial is written from hands-on testing inside real workbooks, not abstract summaries.
If you are deciding which AI tool fits your Excel work, the comparison guides at the top establish a baseline. If you already know which tool you use, jump straight to its section. Each post inside the hub is standalone but designed to compose into a coherent workflow — pick the parts you need and ignore the rest.
The guide is maintained by Sagnik Bhattacharya, a Udemy instructor with 30,000+ students and the founder of Coding Liquids. It is updated as new AI features land inside Excel and as the underlying models change.
Key takeaways
- ChatGPT, Claude, and Gemini handle general Excel formula writing well; Microsoft Copilot is the only tool with first-party access to live workbook context.
- For VBA macros and formula debugging, Claude currently produces the most reliable output across tested workloads.
- Always review AI-generated formulas against a sample of your real data before trusting them at scale — the review process is part of the workflow, not optional.
- Copilot's Agent Mode, Analyst Mode, and Copilot Chat solve different problems; picking the wrong mode wastes credits and produces worse results.
- Gemma 4 and other open-weight models are viable for local, privacy-sensitive Excel workflows and cost nothing to run.
AI Tool Overviews and Comparisons
- 7 Best AI Tools for Excel in 2026 (Tested and Ranked)
Head-to-head ranking of ChatGPT, Claude, Gemini, Copilot, and Gemma 4 on real spreadsheet tasks.
- ChatGPT vs Claude vs Copilot vs Gemini for Excel in 2026
Direct comparison on formulas, macros, data analysis, and error fixing.
- 60 AI Prompts for Excel That Actually Work
Copy-paste prompt library grouped by task type.
- How to Review AI-Generated Excel Formulas Before You Trust Them
The verification workflow that prevents silent errors in AI-generated formulas.
ChatGPT for Excel
- How to Use ChatGPT to Write Excel Formulas (With Real Examples)
Prompt patterns, formula generation, and the limitations to watch for.
Claude for Excel
- How to Use Claude AI to Write Excel Formulas Instantly
Claude's Excel formula generation workflow end to end.
- How to Use Claude AI to Write Excel Macros and VBA Code
Generating production-ready VBA without knowing VBA.
- How to Fix Excel Formula Errors with Claude AI (Fast)
Debugging #REF, #VALUE, #NAME, and #SPILL errors with Claude.
- Use Claude With Agent Mode in Excel: Setup, Limits, and Best Workflows
When Claude's agent mode outperforms direct prompting.
Microsoft Copilot for Excel
- How to Set Up and Use Microsoft Copilot in Excel (2026)
First-time setup, licensing, and what to try on day one.
- Agent Mode in Excel: What It Does, What It Can't, and Who Should Use It
Honest scope assessment for Copilot Agent Mode.
- Analyst vs Agent Mode vs Copilot Chat: Which Excel AI Workflow Fits Best?
Choosing the right Copilot mode for the task.
- COPILOT Function in Excel: Syntax, Use Cases, Limits, and Risks
The new native COPILOT() function explained.
- How to Automate Excel Tasks with Microsoft Copilot
Task automation patterns inside Copilot.
- How to Use Microsoft Copilot for Data Analysis in Excel
Building reports and insights with Copilot.
- Copilot in Excel With Python: Forecasting, Risk Analysis, and Deeper Reasoning
Combining Copilot with Python in Excel.
- Format Data for Copilot in Excel: Tables, Supported Ranges, and Common Failures
Data shapes Copilot handles well vs badly.
- Create Charts With Copilot in Excel: What Works, What Needs Manual Cleanup
Copilot chart generation and its blind spots.
- Create Lookups With Copilot in Excel: When It Writes XLOOKUP Well and When It Doesn't
Copilot's lookup formula strengths and weaknesses.
- Generate Formula Columns With Copilot in Excel: Best Prompts and Review Steps
Bulk formula generation patterns.
- Generate Single-Cell Formulas With Copilot in Excel: Fast Wins and Failure Modes
Single-cell Copilot prompts that work reliably.
Google Gemini and Gemma for Excel
- How to Use Google Gemini to Write Excel Formulas for Free
Free Gemini workflow for spreadsheet formulas.
- Gemma 4 for Data Analysis: Can It Replace ChatGPT for Spreadsheet Work?
Open-weight Gemma 4 tested on real analysis tasks.
- Gemma 4 vs GPT-4o vs Llama 4: Which Free AI Model Is Best for Excel Formulas?
Free model comparison for Excel use cases.
Industry-Specific AI Workflows
- Excel + AI for Accountants: Reconciliations, Variance Reviews, and Close Prep
Accounting-specific AI workflows inside Excel.
- Excel + AI for HR Teams: Hiring Trackers, Attrition Analysis, and Reporting
HR-specific AI workflows.
- Excel + AI for Sales Ops: Pipeline Cleanup, Forecasts, and Territory Reporting
Sales operations AI automation.
AI-Assisted Analysis and Automation
- Build a Forecasting Model in Excel With AI Assistance Step by Step
End-to-end AI-assisted forecasting.
- Use AI to Write and Fix Power Query M Code for Excel
AI-assisted M-code generation.
- Text Analysis in Excel With AI: Survey Comments, Reviews, and Open Feedback
Sentiment and theme extraction from unstructured text.