(31 May 2015, 6:15 pm)aureolin wrote You'd be surprised mate. Funnily enough, most systems aren't designed to be ported across to a competitor. Even something that runs opensource, e.g. this forum software (MyBB) and the database engine (MySQL), requires quite a bit of work to convert.
Even converting something like odt to docx (or docx to pdf) takes a little bit of time and effort to sort out the formatting.