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https://github.com/OfficeDev/Excel-Custom-Functions

Learn about custom functions in Excel.
https://github.com/OfficeDev/Excel-Custom-Functions

Last synced: 3 months ago
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Learn about custom functions in Excel.

Host: GitHub
URL: https://github.com/OfficeDev/Excel-Custom-Functions
Owner: OfficeDev
License: other
Created: 2017-11-01T23:03:37.000Z (about 7 years ago)
Default Branch: master
Last Pushed: 2024-07-31T16:20:13.000Z (3 months ago)
Last Synced: 2024-07-31T20:16:40.336Z (3 months ago)
Language: TypeScript
Size: 4.2 MB
Stars: 315
Watchers: 46
Forks: 61
Open Issues: 5
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
- Security: SECURITY.md

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README

# Custom functions in Excel

Custom functions enable you to add new functions to Excel by defining those functions in JavaScript as part of an add-in. Users within Excel can access custom functions just as they would any native function in Excel, such as `SUM()`.

This repository contains the source code used by the [Yo Office generator](https://github.com/OfficeDev/generator-office) when you create a new custom functions project. You can also use this repository as a sample to base your own custom functions project from if you choose not to use the generator. For more detailed information about custom functions in Excel, see the [Custom functions overview](https://learn.microsoft.com/office/dev/add-ins/excel/custom-functions-overview) article in the Office Add-ins documentation or see the [additional resources](#additional-resources) section of this repository.

## Debugging custom functions

This template supports debugging custom functions from [Visual Studio Code](https://code.visualstudio.com/). For more information see [Custom functions debugging](https://aka.ms/custom-functions-debug). For general information on debugging task panes and other Office Add-in parts, see [Test and debug Office Add-ins](https://learn.microsoft.com/office/dev/add-ins/testing/test-debug-office-add-ins).

## Questions and comments

We'd love to get your feedback about this sample. You can send your feedback to us in the *Issues* section of this repository.

Questions about Office Add-ins development in general should be posted to [Microsoft Q&A](https://learn.microsoft.com/answers/questions/185087/questions-about-office-add-ins.html). If your question is about the Office JavaScript APIs, make sure it's tagged with [office-js-dev].

## Join the Microsoft 365 Developer Program

Join the [Microsoft 365 Developer Program](https://aka.ms/m365devprogram) 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](https://learn.microsoft.com/office/developer-program/microsoft-365-developer-program-faq#who-qualifies-for-a-microsoft-365-e5-developer-subscription-).

## Additional resources

- [Custom functions overview](https://learn.microsoft.com/office/dev/add-ins/excel/custom-functions-overview)
- [Custom functions best practices](https://learn.microsoft.com/office/dev/add-ins/excel/custom-functions-best-practices)
- [Custom functions runtime](https://learn.microsoft.com/office/dev/add-ins/excel/custom-functions-runtime)
- [Office Add-ins documentation](https://learn.microsoft.com/office/dev/add-ins/overview/office-add-ins)
- [Office Add-ins samples](https://github.com/OfficeDev/Office-Add-in-samples)

This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information, see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto:[email protected]) with any additional questions or comments.