[Default Applications]
application/pdf=evince.desktop
image/png=eog.desktop
image/jpeg=eog.desktop

[Added Associations]
image/jpeg=eog.desktop;
image/png=eog.desktop;
video/mp4=mpv.desktop;
application/vnd.openxmlformats-officedocument.wordprocessingml.document=libreoffice-writer.desktop;
audio/mpeg=mpv.desktop;
video/x-flv=mpv.desktop;vlc.desktop;
image/bmp=eog.desktop;
image/x-tga=eog.desktop;
application/pdf=org.gnome.Evince.desktop;evince.desktop;
image/jpeg=org.gnome.eog.desktop;
video/x-ms-wmv=mpv.desktop;
video/mpeg=mpv.desktop;
video/x-msvideo=mpv.desktop;vlc.desktop;
video/quicktime=mpv.desktop;
video/webm=mpv.desktop;
image/gif=eog.desktop;
video/x-matroska=mpv.desktop;
application/vnd.oasis.opendocument.text=libreoffice-writer.desktop;
application/x-tar=xarchiver.desktop;
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet=gnumeric.desktop;
text/plain=mousepad.desktop;
text/csv=gnumeric.desktop;
image/heif=org.gnome.eog.desktop;