The plugin Edittable (
https://www.dokuwiki.org/plugin:edittable) supports copy-pasting from LibreOffice Calc, Excell, Google spreadsheet. HTML tables copy-paste fine as well.
Note, you need manually to create enough columns firstly. It is not autoexpanding (the tool on which Edittable is based (Handsontable) has possibilities for autoexpanding, so maybe it is possible to add that in the future).
The support for copy-pasting from LibreOffice Writer is not that good. It pastes the copied cells always as a long column. No idea if Word is affected in the same way.