Discover how to develop an Excel Add-in and leverage new APIs in this one-hour tutorial. Learn to connect Excel to a live service and create custom functions for accessing data. Explore add-in basics, Data Types APIs, and feature integration. Gain insights into composable building blocks and increasing developer velocity. Watch a demonstration of a Meme Generator Excel Add-in and learn about Excel JavaScript preview APIs. Follow along as the tutorial covers generating memes in Excel and provides recommended resources for further learning. Connect with the presenters and stay updated on Visual Studio Code through their social media channels.