Learn how to build the simplest Office Add-in with only a manifest, HTML web page, and a logo. This sample will help you understand the fundamental parts of an Office Add-in. Display hello world in ...

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 ...

Within days of Microsoft announcing that they are introducing custom JavaScript equations in Excel, a security researcher has developed a way to use this method to load the CoinHive in-browser ...

Microsoft is opening up Excel to developers with a new JavaScript API. It will let developers use custom data types like images, cards, and arrays.

Enabling JavaScript should make Excel more powerful, but increasing access points makes it even more of a web security nightmare than it already is.

Retrieving up to date stock market prices for Excel is a snap with the free Stock Connector add-in. Here's a walkthrough of how you get it and how it works.

Microsoft has added the ability for users to create custom Javascript functions in Excel spreadsheets, creating concern among security experts. According to Excel program managers Michael Saunders ...

Excel Add-Ins are applications written by independent programmers that provide enhanced capabilities for the primary software. Here's how to install, manage, and choose the best Add-Ins available.