Office Add-ins documentation

Use the Office Add-ins platform to build solutions that extend Office applications and interact with content in Office documents and in Outlook mail messages and calendar items. With Office Add-ins, you can use familiar web technologies such as HTML, CSS, and JavaScript to build solutions that can run in Office on the web, Windows, Mac, and mobile.

Overview

Office Add-ins platform overview

How-To Guide

Office Add-ins Beginner's guide

sample

Samples for Office Add-ins

Get started with Office Add-ins

5-minute quick starts

• Excel: Build your first add-in
• Outlook: Build your first add-in
• PowerPoint: Build your first add-in
• Word: Build your first add-in

Add-in scenarios

• Enable single sign-on in an Office Add-in using nested app authentication
• Create an Excel spreadsheet with your add-in from a web page
• Automatically check for an attachment before a message is sent in Outlook
• Implement an integrated spam-reporting Outlook add-in
• Import a Word document template with a Word add-in

Explore the code

• Test and experiment with APIs using Script Lab
• Office JavaScript API reference documentation
• Hello world samples

Your developer journey

Explore

• Get started with Office Add-ins
• Microsoft 365 Developer Blog
• Best practices for developing Office Add-ins

Build

• Develop a full Excel add-in
• Develop a full Outlook add-in
• Develop a full Word add-in
• Read API reference documentation

Test and debug

• Check out the debugging overview
• Clear the Office cache
• Troubleshoot user errors
• Verify an add-in's manifest

Deploy

• Explore deployment options
• Test and deploy Microsoft 365 Apps by partners in the Integrated apps portal

Publish

• Create a Partner Center account for AppSource
• Validate your Office Add-in
• Review the Microsoft 365 App Store submission guide

Engage

• Join the Developer Program
• Request features
• Ask questions about Office.js on Microsoft Q&A
• Ask questions about Office.js on Stack Overflow
• Report a bug or issue