Deterministic recalculation
The spreadsheet engine recalculates dependent cells quickly and is positioned for interactive use inside products. The site describes it as optimized for fast calculations and responsive UIs.
GRID
RivendicaGRID is a spreadsheet engine for agentic products, with viewer, editor, and Excel add-in surfaces for human spreadsheet workflows.
Overview
GRID is a spreadsheet engine for agentic products. It is designed to let applications and AI systems work with spreadsheet models directly, while also providing ready-made UI surfaces for humans who need to read, edit, or inspect spreadsheets.
The product page positions GRID as a headless TypeScript engine plus companion viewer, editor, and Excel add-in surfaces. The engine can run in the browser, on-device, in the cloud, or on your own infrastructure, and the site says it is compatible with Excel and Google Sheets. The get-started flow emphasizes npm installation, a free evaluation license, and a path to commercial licensing when you ship.
Core capabilities
Flexible deployment
The engine is available as a headless TypeScript library that can run in the browser, on user devices, in the cloud, or on your own servers.
Excel and Google Sheets compatibility
GRID says existing spreadsheets run as-is with compatibility for Excel and Google Sheets functions, operators, and common edge cases.
Structured AI interaction
The platform exposes a structured interface for AI systems so language models can read, modify, and create spreadsheets through tool calls instead of generating code.
Spreadsheet viewer
The viewer is described as a lightweight, themeable way to display spreadsheets inside a product without exposing editing tools.
Embedded spreadsheet editor
The editor is described as a spreadsheet editor that fits into a product and supports only the editing users need.
Common use cases
Embed spreadsheet logic in a product
Build an application that needs spreadsheet math and recalculation without sending workbook logic to an external service.
Let agents work with spreadsheets
Give an AI agent structured actions for reading and changing spreadsheet cells, then return results directly instead of generating ad hoc code.
Provide human-facing spreadsheet UI
Add a spreadsheet viewer or editor inside a product so users can inspect, modify, and download workbook files in a familiar interface.
Extend spreadsheet workflows in Excel
Ship an Excel add-in backed by the same deterministic engine and domain-specific logic used in your app.
Prototype a spreadsheet workflow quickly
Start from the quickstart or agent prompt flow to scaffold a React-based spreadsheet editor and test it during development.
Pros and Cons
Pros
- Lets agents operate on spreadsheets through structured tool calls instead of writing and maintaining code.
- Supports both machine workflows and human-facing spreadsheet UI surfaces.
- Can run in multiple environments, including browser, device, cloud, and self-hosted infrastructure.
- Claims compatibility with Excel and Google Sheets, which matters for existing workbook workflows.
- Offers separate engine, viewer, editor, and Excel add-in surfaces so teams can choose the fit they need.
Cons
- Commercial shipping requires a commercial license, so the free evaluation license is not the final production option.
- The source material is partial and does not fully document setup, limits, or every supported integration.
- The pricing page content available here does not spell out plan tiers or public pricing details.
FAQ
Is GRID free to use?
GRID offers a free evaluation license for development, evaluation, and internal prototypes. If you want to ship a commercial product, you need a commercial license.
How do you get started with GRID?
The source pages show installation via npm and a quickstart flow for the engine, viewer, or editor. The get-started page also shows an agent-first workflow using GRID’s skills package and a React-based spreadsheet editor scaffold.
What parts of the product are available?
GRID presents the spreadsheet engine, viewer, editor, and an Excel add-in as the main product surfaces. The engine page says the headless library can run in the browser, on-device, in the cloud, or on your own servers.
Does GRID work with existing spreadsheet workflows?
The engine is described as compatible with Excel and Google Sheets, and the get-started page points to separate quickstart guides for the engine, viewer, and editor.
Quick Facts
- Category
- Developer Tool
- Primary product
- Spreadsheet engine
- Deployment
- Browser, device, cloud, or self-hosted
- Commercial model
- Free evaluation license; commercial license required to ship
- Source domain
- grid.is
- Related surfaces
- Engine, viewer, editor, Excel add-in