MS Word overwrite Paste Options:

[Norsak]

Assuming you are using a Microsoft system, In Word, select Options...Advanced. Under Cut, copy, and paste, set all the "Pasting" settings to Keep Text Only

I'm pretty sure that would change the behaviour of the MS Word application on my computer.
To clarify: I'm looking to add VBA to a document, so that if someone else opens that document (on their computer), they are restricted to pasting text-only