Every software company claims their product uses AI. Most of those claims are marketing. But a handful of AI tools genuinely change how fast you can work in Excel — writing formulas, cleaning data, building macros, and turning plain English into working spreadsheet logic. Here is an honest look at what actually works in 2026.
Category 1 — AI Formula Writers
These tools let you describe what you want and get a formula back. The best ones understand context and return formulas with explanations.
| Tool | Best For | Cost |
|---|---|---|
| ChatGPT / Claude | Complex formulas, VBA code, formula explanations | Free / $20/month |
| ExcelFormulaBot | Quick formula lookups, no context needed | Free tier available |
| Copilot in Excel | Formulas, charts, data analysis in-app | Microsoft 365 Copilot |
Verdict: ChatGPT and Claude are the most capable for complex operations formulas. Copilot is convenient if you are already in Microsoft 365 and paying for the subscription.
Category 2 — AI Data Cleaners
Cleaning messy inventory data — duplicate SKUs, inconsistent categories, malformed dates — is one of the biggest time wasters in Excel. AI tools are starting to make this faster.
| Tool | What It Does | Cost |
|---|---|---|
| Power Query (built-in) | Records cleaning steps, applies automatically on refresh | Free with Excel |
| Copilot in Excel | Suggests data cleaning actions in natural language | Microsoft 365 Copilot |
| OpenRefine | Advanced data cleaning for large, messy datasets | Free |
Verdict: Power Query is still the best data cleaning tool for most operations teams — and it is free. AI adds convenience, not a step change in capability yet.
Category 3 — AI Macro and Script Writers
Describing a task and getting working VBA code back is one of the most valuable things AI does for Excel users today.
- ChatGPT and Claude: Describe the automation step by step. Include sheet names, column layout, and what triggers it. Both generate reliable VBA that usually works with minor tweaks.
- Copilot in Excel: Can write Office Scripts (the cloud version of VBA) directly in the Excel interface. Useful for simple automations.
Verdict: For VBA and macro writing, ChatGPT and Claude are significantly ahead of anything built into Excel. They handle complex logic, error handling, and explain what the code does.
Category 4 — AI Analysis and Insights
Some tools claim to analyze your data and surface insights automatically.
| Tool | Reality |
|---|---|
| Copilot "Analyze Data" | Useful for quick charts and pivot suggestions. Not a replacement for domain knowledge. |
| ChatGPT with file upload | Can answer specific questions about your data. Needs clear column descriptions. |
Verdict: AI analysis is useful for quick EDA (exploratory data analysis) but cannot replace knowing your business. It will not know that your inventory spike in March is seasonal — you have to tell it that.
The Honest Assessment
AI is genuinely useful for Excel in 2026 in these specific situations:
- Writing formulas you don't know how to write
- Explaining formulas you've inherited and don't understand
- Generating VBA macro code from a description
- Getting unstuck when you've been debugging for 30 minutes
AI is not yet a replacement for Excel expertise. You still need to understand your data, know what question to ask, and verify that the output is correct.