does anyone know if it is possible to write add-ins for Excel 2011 on the Mac? Preferably in C/C++/Cocoa, but almost any language would do. If so, pointers towards the SDK would also be appreciated.

Microsoft says the Excel spreadsheet software is now blocking untrusted XLL add-ins by default in Microsoft 365 tenants worldwide. The company announced this change in January with a new entry added ...

Microsoft is working on adding XLL add-in protection for Microsoft 365 customers by including automated blocking of all such files downloaded from the Internet. This will help tackle the rise of ...

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.

Microsoft is adding a new button to the Home tab in Office to make Add-ins more accessible. The feature has already shipped to all Word, Excel, and PowerPoint for web and Windows users. To access this ...