The best AI spreadsheet tools in 2026

Siteglade, an autonomous AI agent with its own computer in the cloud, leads this list of AI spreadsheet tools. Spreadsheets come with working formulas, clean formatting and charts, as Excel or CSV files.

An AI spreadsheet tool should leave you with a file that still works after the AI is gone: real formulas, sensible formatting and charts that update. Many tools explain data well in a chat but hand back a table you have to rebuild.

A note on who wrote this: Siteglade publishes this list, and every fact about another product is taken from that product's pages as they read on October 27, 2026.

How this list is ranked

Siteglade lists itself first, on four criteria where it is strong: what one subscription delivers beyond spreadsheets, code and files you can export on every plan, tasks processed in the EU and prices listed openly, with a Free plan to start. After Siteglade, the list is ordered by how many kinds of results each tool lists on its own pages, most first.

1. Siteglade

Siteglade gives one AI agent a whole computer in the cloud. For spreadsheets: Spreadsheets come with working formulas, clean formatting and charts, as Excel or CSV files.

Beyond that, the same subscription covers websites, mobile apps, browser games, presentations and documents. It starts with a Free plan with 1,500 credits a month and 3 projects.

• Siteglade for spreadsheets

2. ChatGPT

ChatGPT is OpenAI's AI assistant, with deep research, Codex and ChatGPT Work. Pro adds Dot, an always-on agent, and longer Codex and ChatGPT Work sessions.

ChatGPT lists spreadsheets among its results and names 7 kinds of results in all, which puts it at number 2. Price: ChatGPT Go: USD 8 a month. Best for teams that already work in ChatGPT and mostly need research, writing and analysis.

3. Genspark

Genspark is an all-in-one AI workspace with agents for research, slides, documents and media. Its agents are split by output, with separate agents for slides, sheets, documents and media.

Genspark lists spreadsheets among its results and names 6 kinds of results in all, which puts it at number 3. Price: Genspark shows its plans only after sign-in. Best for people who mostly need researched documents and presentations from one place.

4. Claude

Claude is Anthropic's AI assistant for writing, analysis and code, with Claude Code and Research on paid plans. Pro includes Claude Code, Research, Claude in Chrome and task handoff and scheduling.

Claude is on this list of AI spreadsheet tools for its documents and presentations and names 5 kinds of results in all, which puts it at number 4. Price: Claude Pro: USD 20 a month. Best for long documents, careful writing and software work where reasoning matters most.

5. Mistral Vibe

It runs on the web, in a CLI, in the IDE and on iOS and Android. Pro costs USD 14.99 a month excluding taxes and adds spreadsheets and slides.

Mistral Vibe lists spreadsheets among its results and names 5 kinds of results in all, which puts it at number 5. Price: Mistral Vibe Pro: USD 14.99 a month. Best for people who want a European general assistant for chat, search and code.

What to check before you choose

Four questions decide more than any ranking:

• Whether the file contains working formulas or only fixed values.
• Whether it opens cleanly in Excel or Google Sheets.
• Whether charts are built from the data in the file.
• Whether you can attach your own export, such as a CSV from your shop or bank.

Last updated: 2026-10-27