Install and use add-ins in Excel to get additional features and commands in your workbook.

To prevent Excel from disabling an add-in, you should use Excel add-ins from trusted sources only. Once you do this, this ensures that Excel recognizes the add-in as safe and avoids any disruptions.

This tutorial shows you how to create a custom Excel add-in to boost your productivity and add new functionality to Excel. Learn how to create macros, customize the ribbon and toolbar, and distribu ...

An Excel custom functions add-in built with TypeScript, React, and the Office JavaScript API. This sample demonstrates how to create synchronous, streaming, and spill functions for Excel, including a ...

Do you need to use a custom font for your Office apps? This guide shows you how to add new fonts to Word, PowerPoint, Excel, and other apps.