Best AI Tools for Excel in 2026: An Honest Roundup

"AI for Excel" now covers very different products: assistants that live inside the workbook, general chatbots that accept file uploads, dedicated apps for asking questions of data, and formula-level functions that run a prompt in a cell. They solve different problems, and the best choice depends far more on what you're trying to do than on which one is "smartest."

This roundup groups the main options by what they're built for, describes each one fairly — including ChatExcel, which we make — and ends with a short way to choose. Features and prices in this market change monthly, so everything here reflects what vendors published at the time of writing. Check each vendor's current pricing and documentation before you buy.

The four kinds of AI spreadsheet tool

Before comparing products, it helps to know which kind you need:

1. In-workbook assistants sit in a side panel inside Excel or Google Sheets and can edit the file: write formulas, add columns, build charts in the sheet.
2. General AI assistants like ChatGPT accept an uploaded spreadsheet as one of many things they can work with.
3. Dedicated data-analysis apps are built specifically for asking questions of uploaded data and getting answers and charts back.
4. Cell-level AI functions let you put a prompt in a formula and apply it row by row — useful for classifying or summarizing text, not for analyzing a whole table.

Most frustration with AI spreadsheet tools comes from using one kind for another kind's job.

In-workbook assistants

Microsoft Copilot in Excel

Built into Excel for eligible Microsoft 365 plans. Microsoft describes edit, plan, and chat modes; it can change the workbook directly — generating and transforming data, sorting, filtering, and highlighting — and search your work files. Microsoft's documentation says it requires AutoSave, which means the file needs to be saved to OneDrive or SharePoint, in a modern format like .xlsx. Availability depends on your subscription and, at work, your admin's settings.

Good fit: organizations already licensed for Microsoft 365 Copilot, and people who want help building spreadsheets. Our Copilot in Excel alternatives guide covers the requirements in detail.

Claude for Excel

Anthropic's add-in brings Claude into the Excel workbook. At the time of writing Anthropic lists it on paid Claude plans (Pro, Max, Team, and Enterprise) and describes it as able to answer questions about the open workbook, explain calculations, and update assumptions while preserving formulas.

Good fit: people building or auditing models in Excel who already use Claude.

Gemini in Google Sheets

Google's assistant appears in a Sheets side panel for summarizing data, spotting trends, and generating formulas and charts. Availability depends on your Google Workspace edition or Google AI plan.

Good fit: teams whose data already lives in Google Sheets. See analyzing Google Sheets data with AI for the options there.

General AI assistants

ChatGPT

Upload an Excel or CSV file and ChatGPT's data analysis feature can write and run Python on it, showing tables and charts. OpenAI says file uploads are available on free and paid plans, with tighter limits on the free tier. It's the most flexible option here — it can reshape data, run statistics, and mix analysis with writing — but because it's a general assistant, it pays to confirm which sheets it loaded and that it actually ran code for numeric answers.

Good fit: occasional, exploratory, or unusual questions. We go deeper in ChatGPT for Excel analysis.

Dedicated data-analysis apps

ChatExcel

Our product, so weigh this accordingly. ChatExcel is a web app for asking questions of spreadsheets: upload an Excel (.xlsx or .xls) or CSV file, and every sheet is read. You ask in plain English, and each answer is calculated from the whole dataset rather than estimated. It renders interactive bar, line, area, and pie charts, shows the Excel formula behind an answer when you ask, answers in 15+ languages, and keeps a persistent chat for each file.

What it doesn't do: it doesn't edit your workbook, it isn't a general-purpose assistant, and it has no free plan or trial. Plans start at $29/month.

Good fit: people who regularly analyze exports and reports — sales, orders, payments, inventory — and want reliable answers and charts without building formulas.

Julius AI

A data-analysis app that works with spreadsheets and other data sources and produces charts and analyses from plain-English questions. Third-party reviews at the time of writing describe a free tier with limited usage alongside paid plans; check Julius's own site for current plans.

Good fit: people who want a broader data-science-style workspace and are comfortable with more technical output.

Cell-level AI functions

Google Sheets offers an AI function (=AI()) that runs a prompt against cell values — for example, categorizing feedback or summarizing a text column. Google's documentation says it requires an eligible Workspace or Google AI plan and that the function doesn't have access to your entire spreadsheet. That makes it good for row-by-row text work and the wrong tool for "what was revenue by region?"

Comparison at a glance

How to choose

Work through these in order; most people have an answer by the third.

1. Do you want the file changed, or a question answered? If you want formulas written into cells and data restructured, choose an in-workbook assistant for the app you use. If you want a number, a ranking, or a chart, a dedicated app or general assistant is usually faster.

2. Where does the data come from? Files built and stored in OneDrive suit Copilot. Data in Google Sheets suits Gemini. Exports downloaded from Shopify, Stripe, a CRM, or accounting software suit a tool that accepts Excel and CSV uploads as-is.

3. How often will you do this? For the occasional question, whatever you already pay for is probably enough. For weekly reporting on the same kinds of files, a dedicated tool with a saved chat per file saves repeated setup.

4. How much do you need to trust the numbers? Every vendor, Microsoft included, warns that AI can make mistakes. Prefer tools that compute from the full data and show what they did, and reconcile one figure by hand before sharing — our guide on how to chat with an Excel file using AI covers how.

5. What will it actually cost? Compare the plan you would need, not the cheapest one listed. Per-user licensing, usage credits, file limits, and message caps differ widely.

Where ChatExcel fits

If step 1 landed on "answer a question" and step 2 on "exported files," ChatExcel is built for exactly that. Plus is $29/month (50 files a month, up to 10MB), Pro is $99/month (250 files, 20MB, and a more advanced model), and Premium is $149/month (500 files, 30MB); yearly billing gives you two months free. See pricing or the FAQ.