Microsoft plans to add a feature to Office Excel that will make it harder for cyberattackers to exploit the spreadsheet application's "add-ins" function to run malicious code on a victim's computer.

Researchers report a new version of the JSSLoader remote access trojan being distributed via malicious Microsoft Excel addins. The particular RAT (remote access trojan) has been circulated in the wild ...

Microsoft has announced plans for its 365 customers to automatically block all XLL add-in files downloaded from the internet to prevent phishing attacks relying on these types of lures. Writing on its ...

Microsoft has announced that Office for iPad apps will gain the ability to use add-in apps like its desktop and web Office components; we go hands on with the updated Excel for iPad. Share on Facebook ...

Microsoft released a new set of tools on Monday to help developers make slick-looking add-ins for Office apps, at a time when the company wants to boost the ecosystem of third-party applications and ...