Split from bug 70097 According to bug 70097 comment 9, we currently implement version 3.x of the Hangul Word Processor (HWP) file format. There are later versions up to at least 5.x which we do not support. To better support our Korean users, we should implement filters for later versions of the format.
The current and mostly used format is 5.x. (There's no 4.x format.) The format specification has been published by the Hancom, but obviously in Korean language: http://www.hancom.com/forMatQna.boardIntro.do
Setting to NEW.
There already is https://github.com/mete0r/pyhwp, which can built as an extension. It does not work OOTB right now, because a build script is missing (which is easily remediable) and the code would have to be updated to changes in PyUNO (which is a bit harder). But IMHO it is still preferable to attempt to resurrect this project, rather than to start a brand-new import filter.