[DerekM]

Well, if instead of opening the file directly with OO, you can copy everything after 'Topic' in the text file and paste that into an OO document. The main issue you're having is 'Topic' being placed at level 1 and rest starting at level 2 it looks like? Or you can manually outdent everything after the topic row.

Is there some functionality about OO you don't like that is making you want to export the file to edit it?