With the 15.04 release of Kubuntu, I switched from Gnome (Ubuntu) to KDE/Plasma. I did a clean install, while keeping my home directory. Now, libreoffice (mostly Calc) seems to be associated with every unknown file-type. Instead of manually fixing the associations for every file I encounter, I'd rather understand what went wrong and fix it by looking at the corresponding config file that KDE/Plasma uses. Which config-file is it?
KDE stores its mimetype mappings in
~/.local/share/applications/mimeapps.list, so you might want to have a look at that file. Each line containe a mimetype followed by an
= and the application to use, for example:
You can also change these associations with the
kcmshell4 tool (see also):