Excel add-ins documentation

Build Excel add-ins with HTML, CSS, and JavaScript. Start with a quickstart or tutorial, explore Excel APIs, and learn how to test, deploy, and publish.

Get started with Excel add-ins

Overview

• Build Excel add-ins with Office Add-ins

Quickstart

• Build your first Excel task pane add-in

Tutorial

• Excel add-in tutorial

Training

• Explore Office JavaScript API using Script Lab

Build with Excel JavaScript APIs

How-To Guide

• Core Excel object model concepts
• Use data types in an Excel add-in (preview)
• Create custom functions in Excel

Test, deploy, and publish Excel add-ins

How-To Guide

• Test Office Add-ins
• Deploy and publish Office Add-ins

Learn key Office Add-ins concepts

Overview

• Office Add-ins platform overview

Concept

• Office Add-in development lifecycle overview
• Design the UI of Office Add-ins
• Develop Office Add-ins

Get help and resources

Reference

• Ask questions
• Microsoft 365 Developer Platform
• Report issues
• Office Add-ins additional resources