This sample shows how to build an Excel add-in using .NET Blazor technologies. Blazor Webassembly allows you to build Office Add-ins using .NET, C#, and JavaScript to interact with the Office JS API.

Office suite (Excel, Word etc..) supports add-ins, either in web or desktop app (app is Windows-only). This document will explain how to create one using Office JavaScript API, step by step. A dual ...

At the Build 2018 developer conference that's taking place these days in Seattle, USA, Microsoft announced support for custom JavaScript functions in Excel. What this means is that Excel users will be ...

Before we go further, it is important to note that this is just a proof of concept and to even use custom functions in Excel, you first need to be using the Office Insider version of Excel and to ...