Add Office Support for XML Files
Excel XML files (.xml) won't open from a SharePoint library via the browser (IE 11). Office returns an error saying "This action couldn't be performed because Office doesn't recognize the command it was given." But they do open from the File Explorer (after using Open with Explorer from the library ribbon), so I guess the problem isn't with Office but rather with the way SharePoint is passing the link to Office. That should be fixed.
I posted a question in the SharePoint 2013 - General Discussions and Questions forum and a Microsoft Contingent Staff member verified the failing behaviour and suggested this is the way to have this problem resolved.
Hello! I think this is what I need, but how do I add Office Support for XML FIles ? Thanks!