I have a user who does not have Visio. She did already have the Visio Viewer 2007. She is trying to open a .vsdx file created in Visio 2013, so I downloaded and installed Visio Viewer 2013 (32bit).
She is unable to open .vsdx files still. If we double click on the .vsdx file we get this
Any idea how to fix this?