Microsoft Excel (Advanced) Excel JavaScript API JavaScript API for building Excel add-ins and extensions. Documentation GitHub Documentation 📖 Documentation https://learn.microsoft.com/en-us/office/dev/add-ins/excel/ 📖 APIReference https://learn.microsoft.com/en-us/javascript/api/excel Other Resources 🔗 Samples https://github.com/OfficeDev/Office-Add-in-samples 🔗 Quick Start https://learn.microsoft.com/en-us/office/dev/add-ins/quickstarts/excel-quickstart-jquery 🔗 CDN https://appsforoffice.microsoft.com/lib/1/hosted/office.js