At its Ignite conference, Microsoft today announced an update to Excel that brings a new JavaScript API to the venerable spreadsheet app. With this new API, developers will be able to create ...

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.

Microsoft has partnered with two third-party services to make accessing this API easier. Zapier users, for example, can now build integrations with Excel for Office 365, and Sage, which offers ...