I'm hoping to find something editable. If the document is complex, with multimedia, are the .docx exports reasonably functional? Some conversions to .docx and some multimedia content in that format can be unstable.
Maybe a web CMS like WordPress or a wiki platform, but nothing that is stored in a single file. It seems to me to be a big hole in available technology. Why in 2015 can't I easily create a document with multiple videos, markup, etc. in it?
