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 ...

In the well-established Office Ready-Fire-Aim tradition, Microsoft adds two new “features” that beg to be abused. Details appeared at Build, and the bad guys already have their keyboards primed. Once ...

Javascript custom functions are now supported in the Insider program's Excel (build 9325) so that developers can extend Excel's built-in function set. Security researcher Charles Dirderman immediately ...

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 and ...

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 custom ...

Many of them are backward- and forward-compatible, but check the system requirements before you download anything. Note that newer isn’t always better: Many of the ...

Tom Warren is a senior editor and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft Excel used to only allow two types of data: text and numbers.