Comment 7 for bug 272975

Also if you have accidentally associated the file incorrectly at some point in the past there is probably a file called:

~/.local/share/applications/mimeapps.list

That would have something like this in the file:

[Added Associations]
application/vnd.oasis.opendocument.graphics=ooo-draw.desktop;file-roller.desktop;mount-archive.desktop;ooo-impress.desktop;