Office Add-ins code samples

Office Add-ins code samples are provided in this repo to help you learn, study, and build great Office Add-ins!

Getting started

The following samples show how to build the simplest Office Add-in with only a manifest, HTML web page, and a logo. They will help you understand the fundamental parts of an Office Add-in. For additional getting started information, see our quick starts and tutorials.

• Excel "Hello world" add-in
• Outlook "Hello world" add-in
• PowerPoint "Hello world" add-in
• Word "Hello world" add-in

Completed tutorials

The following samples are the completed versions of various tutorials for Office Add-ins.

Name	Description
Excel Tutorial - Completed	This sample is the completed version of the Tutorial: Create an Excel task pane add-in that shows how to create an Excel add-in with a task pane and command ribbon buttons. The add-in shows how to create and sort a table, make a chart, freeze a row, protect a worksheet, and display a dialog box.
Outlook Tutorial - Completed	This sample is the completed version of the Tutorial: Build a message compose Outlook add-in that shows how to build an Outlook add-in that can be used in message compose mode to insert content into the body of a message. The add-in shows how to collect information from the user, fetch data from an external service, implement a function command, implement a task pane, and display a dialog box.
PowerPoint Tutorial (Visual Studio) - Completed	This sample is the completed version of the Tutorial: Create a PowerPoint task pane add-in that shows how to create a PowerPoint add-in with a task pane. The add-in shows how to add the Bing photo of the day to a slide, add text to a slide, get slide metadata, and navigate between slides.
PowerPoint Tutorial (yo office) - Completed	This sample is the completed version of the Tutorial: Create a PowerPoint task pane add-in that shows how to create a PowerPoint add-in with a task pane. The add-in shows how to add an image to a slide, add text to a slide, get slide metadata, and navigate between slides.
Word Tutorial - Completed	This sample is the completed version of the Tutorial: Create a Word task pane add-in that shows how to create a Word add-in with a task pane. The add-in shows how to insert and replace text ranges, paragraphs, images, HTML, tables, and content controls. The add-in also shows how to format text and how to manage content in content controls.

Blazor WebAssembly

Name	Description
Create a Blazor WebAssembly Excel add-in	Uses .NET Blazor technologies to build an Excel add-in.
Create a Blazor WebAssembly Word add-in	Uses .NET Blazor technologies to build a Word add-in.
Create a Blazor WebAssembly Outlook add-in	Uses .NET Blazor technologies to build an Outlook add-in.

Auth, Identity and Single Sign-on (SSO)

All of the following samples show how to access and work with a user's Microsoft Graph data using the Microsoft identity platform.

Host	Auth approach	Platform	Name
Outlook add-in	SSO	ASP.NET server	Use SSO in an Outlook Add-in with ASP.NET
Outlook add-in	SSO	Node.js server	Use SSO with event-based activation in an Outlook add-in
Office Add-in	SSO	ASP.NET server	Use SSO in an Office Add-in with ASP.NET
Excel add-in	SSO	Node.js server	Use SSO in an Office Add-in with Node.js
Excel add-in	MSAL	React SPA	Use MSAL.js for auth and Microsoft Graph in an Excel add-in
Excel add-in	MSAL	ASP.NET server	Use MSAL.NET for auth and Microsoft Graph in an Excel add-in
Outlook add-in	MSAL	ASP.NET server	Use MSAL.NET for auth and Microsoft Graph in an Outlook add-in

Office

Name	Description
Save custom settings in your Office Add-in	Shows how to save custom settings inside an Office Add-in. The add-in stores data as key/value pairs, using the JavaScript API for Office property bag, browser cookies, web storage (localStorage and sessionStorage), or by storing the data in a hidden div in the document.

Outlook

Name	Description
Encrypt attachments, process meeting request attendees, and react to appointment date/time changes using Outlook event-based activation	Shows how to use event-based activation to encrypt attachments when added by the user. Also shows event handling for recipients changed in a meeting request, and changes to the start or end date or time in a meeting request.
Identify and tag external recipients using Outlook event-based activation	Uses event-based activation to run an Outlook add-in when the user changes recipients while composing a message. The add-in also uses the appendOnSendAsync API to add a disclaimer.
Set your signature using Outlook event-based activation	Uses event-based activation to run an Outlook add-in when the user creates a new message or appointment.
Verify the color categories of a message or appointment before it's sent using Smart Alerts	Uses Outlook Smart Alerts to verify that required color categories are applied to a new message or appointment before it's sent.
Verify the sensitivity label of a message	Uses the sensitivity label API in an event-based add-in to verify and apply the Highly Confidential sensitivity label to applicable outgoing messages.
Report spam or phishing emails in Outlook (preview)	Builds an integrated spam-reporting add-in that's displayed in a prominent spot on the Outlook ribbon.

Excel

Name	Description
Data types explorer	Builds an Excel add-in that allows you to create and explore data types in your workbooks. Data types enable add-in developers to organize complex data structures as objects, such as formatted number values, web images, and entity values.
Open in Teams	Creates a new Excel spreadsheet in Microsoft Teams containing data you define.
Insert an external Excel file and populate it with JSON data	Insert an existing template from an external Excel file into the currently open Excel file. Then retrieve data from a JSON web service and populate the template for the customer.
Create custom contextual tabs on the ribbon	This sample shows how to create a custom contextual tab on the ribbon in the Office UI. The sample creates a table, and when the user moves the focus inside the table, the custom tab is displayed. When the user moves outside the table, the custom tab is hidden.
Use keyboard shortcuts for Office add-in actions	Shows how to set up a basic Excel add-in project that utilizes keyboard shortcuts.
Custom function sample using web worker	Shows how to use web workers in custom functions to prevent blocking the UI of your Office Add-in.
Use storage techniques to access data from an Office Add-in when offline	Demonstrates how you can implement localStorage to enable limited functionality for your Office Add-in when a user experiences lost connection.
Custom function batching pattern	Batch multiple calls into a single call to reduce the number of network calls to a remote service.

Word

Name	Description
Get, edit, and set OOXML content in a Word document with a Word add-in	Shows how to get, edit, and set OOXML content in a Word document.
Import a Word document template with a Word add-in	Shows how to import templates in a Word document.
Load and write Open XML in your Word add-in	Shows how to add a variety of rich content types to a Word document using the setSelectedDataAsync method with ooxml coercion type.
Manage citations with your Word add-in	Shows how to manage citations in a Word document.

Shared JavaScript runtime

Check out these samples if you want to take advantage of the shared runtime for your Office Add-in.

Name	Description
Share global data with a shared runtime	Shows how to set up a basic project that uses the shared runtime to run code for ribbon buttons, task pane, and custom functions in a single browser runtime.
Manage ribbon and task pane UI, and run code on doc open	Shows how to create contextual ribbon buttons that are enabled based on the state of your add-in.

Additional samples

Name	Description
Use a shared library to migrate your Visual Studio Tools for Office add-in to an Office web add-in	Provides a strategy for code reuse when migrating from VSTO Add-ins to Office Add-ins.
Integrate an Azure function with your Excel custom function	Learn how to integrate Azure functions with custom functions to move to the cloud or integrate additional services.
Dynamic DPI code samples	A collection of samples for handling DPI changes in COM, VSTO, and Office Add-ins.

Learn more

To learn more about Office Add-ins, see the Office Add-ins documentation.

Questions and feedback

• Did you experience any problems with a sample? Create an issue and we'll help you out.
• We'd love to get your feedback about the samples. Go to our Office samples survey to give feedback and suggest improvements.
• For general questions about developing Office Add-ins, go to Microsoft Q&A using the office-js-dev tag.

Join the Microsoft 365 Developer Program

Join the Microsoft 365 Developer Program to get resources and information to help you build solutions for the Microsoft 365 platform, including recommendations tailored to your areas of interest.

You might also qualify for a free developer subscription that's renewable for 90 days and comes configured with sample data; for details, see the FAQ.

Community

The Office Add-ins code samples are a community-driven effort that helps developers extend, build, and provision customizations for the Office platform. The source is maintained on this GitHub repo where anyone can participate. You can provide contributions to the samples, reusable components, and documentation. Office Add-ins code samples is owned and coordinated by Office engineering teams, but the work is done by the community for the community.

Please read the Contribute page to learn how to be an active part of this community.

Code of conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.