Shortly after Microsoft announced support for custom JavaScript functions in Excel, someone demonstrated what could possibly go wrong if this feature is abused for malicious purposes. As promised last ...

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 ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Kenneth Harris, a NASA veteran who worked on ...

This is a simple Excel parser in JavaScript that allows you to read and parse data from Excel files. The parser uses a third-party library called xlsx to handle the Excel file processing.

Javascript + HTML + Jquery ONLY, no other library. Create index.html in your favourite text editor. It should load and use the jquery javascript library which you ...

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 ...

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 ...

All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Learn more. The ...

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 ...