Drag and Drop content to RichtextArea

Hi everyone,
Does sombody has good experience with Drag and drop content from a Word or Writer document into a RichTextArea from Vaadin.
With Word content it loses all styling from the document (on the rigth side in attachement)
With Writer content it ends up with some unicode symbols. (on the left side in attachement)

Is it possible to do this in Vaadin or not?

Thank you for your anwser.
15604.odt (104 KB)