Excel meets AI: Technical insights, tutorials, and best practices for building intelligent spreadsheet applications
That Excel workbook with years of business logic? Stop trying to recreate it in JavaScript. Here's a better way.
Parsing Excel files in your own code gives you the stored values, not a calculation. A spreadsheet API lets the workbook itself calculate. Here is the difference.
Your Excel models contain sensitive business logic, and the cloud is not always an option. Here is how SpreadAPI Runtime calculates your services on servers you operate.
What an Excel MCP server is and how it works with SpreadAPI: the two MCP addresses, what an AI assistant sees of a service, setup, a worked quote-calculator example with JSON-RPC messages, tokens and honest limits.
SpreadAPI has no goal-seek or solver endpoint. Here are three ways to find the input that gives a target result anyway, two of them run against our public demo service with the real iterations.
The old developer debate: Excel formulas or JavaScript functions? Use each for what it is good at.
We measured the response time of one published workbook on 13 November 2026: 16 ms calculation, 19 ms on the server, 97 ms round trip. The method, the numbers, and what a caller can do about the rest.
One worked example instead of big promises: an Excel mortgage workbook with a terms table and a repayment plan, published as an API. The inputs, the outputs, and the real answers of the service.
A practical step-by-step guide to connecting Claude to your Excel calculations with SpreadAPI: publish the workbook, add one address in Claude, decide what Claude may do and see, and fix the usual problems.
Connecting ChatGPT to your Excel workbook is quickly done. This post is about the questions that come before: what ChatGPT can see, what it can change, who else can call the service, and what is recorded.
How to give your own AI agent a function that calculates with your Excel workbook over the REST API. Every code block in this post was run against our public demo service, and the outputs are the ones we got.
AI models predict numbers instead of calculating them. Here is why that goes wrong with Excel models, and how to let your AI assistant call the real workbook instead.
Our n8n community node n8n-nodes-spreadapi has been verified by the n8n team. Here's what it does, why it exists, and how to run your first Excel calculation in a workflow.
Your pricing logic already lives in Excel. SpreadAPI turns that workbook into a live Excel pricing engine and quote API, so apps, websites, and AI agents get prices calculated by your formulas without seeing a single one.
The proven business logic in your Excel workbook is already a rules engine. SpreadAPI makes it a deterministic API for apps and AI agents - no rewrite required.
Want to use Claude for Excel? Learn why Claude can't reliably do spreadsheet math on its own, and how SpreadAPI connects Claude to your real workbook via MCP, so the numbers are calculated by your formulas.
ChatGPT is brilliant with words but unreliable with spreadsheet math. Here's how to connect ChatGPT for Excel the right way, so your real formulas calculate the numbers and the workbook stays with you.
AI can write poetry and code, but on its own it cannot run your Excel formulas. Here is why, and what you can do about it.