Thanks. That first URL suggests that I might be lucky (most or all of my WORD documents were created in versions of WORD that are shown as supported for imports of encrypted documents).
Re: the second URL, I hadn’t intended to inquire about password ‘removal’ – I know how to do it (and one can always resave any encrypted document without a password) – I just wanted to avoid having to do it in order to import documents into LibreOffice.
As far as I’m aware, there’s no method of ‘bulk password removal’ – which means that any de-encryption method still involves dealing with every individual WORD document separately prior to importing into L.O. But if importing with encryption intact works, that will be the next best thing.