Microsoft Excel used to only allow two types of data: text and numbers. After overhauling Excel with its own live custom data types last year, Microsoft is opening up Excel to give developers the freedom to create their own custom data types that can contain images, arrays, and more.
A new JavaScript API will be available to preview inside Excel later this month, which will let developers create these custom data types for inputs and outputs and enable custom functions. Excel developers will be able to create their own add-ins or update existing ones to use the JavaScript API.
Image: Microsoft
This will open Excel up to far more custom data types,…