I recently installed LibreOffice on my Ubuntu 18.04 system in order to open a particularly recalcitrant Word file, remembering that I had once salvaged another file by importing it into OpenOffice.
LibreOffice installed just fine, and now runs alongside MS Office 2010, which I installed using Crossover Office 18.1. There is only one problem: if the default file association is with MS Word/Excel, docx files now fail to open when I double-click them. Xlsx files sometimes display the same behaviour. Interestingly, if I set the default file association to LibreOffice rather than MS Office double-click does, actually, work - but LibreOffice is, of course, launched, rather than MS Office.
Also, I can open these files with LibreOffice using right-click, but not with Microsoft Office - even though MS Word and MS Excel are registered as the default applications.
I have tried recreating the Bottle file associations, as well as resetting the default file association using Gnome's right-click menu. Neither works.
The files do open correctly if I open MS Word or Excel and then use File > Open.
Does anyone know what might be the problem, and how I could resolve it?