Originally published on the GRID blog.
Spreadsheets are programs. You can easily make them part of your software stack for AI and automation.
Spreadsheets are more than just tables of data; they are end-user-generated programs. This makes spreadsheet software the most successful low-code environments in history. Every financial model, sales forecast, and business calculation built in a spreadsheet is — in essence — a custom application created by a business user.
But what if these spreadsheet-based applications could be deployed as scalable, reliable web services, ready to integrate with anything? That’s exactly what GRID’s API service enables.
From spreadsheet to web service in 2 minutes
With GRID, you can take a financial model — like the one in the video below that calculates bond valuation based on inputs such as coupon rate, bond maturity, and risk-free rate — and instantly deploy it behind a fully functional API endpoint.
It’s essentially a two-step process:
- Upload your spreadsheet — GRID automatically recognizes the structure of the file, and our engine is fully compatible with Excel and Google Sheets
- Query your API right away — You can even use the interactive documentation to do so from within our environment before you take it outside.
What this means:
- There is no need to recreate the calculations in another system
- You can instantly make a spreadsheet model a part of any software process in a reliable and scalable way
- Business users and domain experts can still maintain the models and evolve them in the software they feel at home in: their spreadsheets
Next: Bringing it to AI
Once your spreadsheet is deployed in the service you can make it accessible through AI. In this second video, we show how we integrate the API with a custom GPT in ChatGPT, allowing you to interact with your spreadsheet using natural language. The same general approach and instructions will work for any LLM integration.
The GRID API environment automatically generates the prompts and meta-data the LLM needs to interact with the spreadsheet, so all you have to do is to follow a straight-forward set of instructions. Again in about 2 minutes:
The future of spreadsheets in an AI-first world
With GRID, spreadsheets are no longer just files sitting on your desktop. They become real software — scalable, interactive, and AI-powered.
By transforming spreadsheet models into APIs and integrating them with AI-powered assistants like ChatGPT, we unlock a new way of working:
- Your spreadsheet logic, accessible through natural language
- Real-time calculations without opening a file
- AI-powered insights and automation based on your existing models
Want to try it for yourself?
👉 Learn more about GRID’s API service
