Using an exported Endnote traveling library in an MS word document that has a pre-existing Endnote library already assigned

Hello Endnote community,

I’d like feedback on an issue related to traveling libraries exported from an MS Word file. I’ve exported a library from a Word document and created a new library for it --Endnote library X for Word file X

I have also a copy of that MS Word file which has another Endnote library assigned to it – Endnote library Y for Word file Y.

What I would like to do is to apply the traveling library from Word file X to Word file Y, writing over the Endnote library associated with Word file Y. 

Is that possible? If so, please indicate the steps to do this. 

Some notes: I’m using Endnote X9 for mac, MS Word for mac 2011. 

Many thanks, 
KaiserNL

Assuming I have understood the problem correctly:
Open Library X in Endnote and open Document Y in Word.
When you select the “Update Citations and Bibliography” function in Word, the document will be linked to the open library.

Does this solve the problem?