Hi @Filip ,
maybe this helps:
https://devblogs.microsoft.com/scripting/hey-scripting-guy-how-can-i-copy-a-portion-of-a-microsoft-word-document-to-a-new-microsoft-word-document/
Or this one:
https://gist.github.com/bungard/0d3f76a0216a2ac7c3d5
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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten