Dear Volker,
I send you my answer posted 8 years ago :
Adding the EN X4 Extension in LibreOffice 3.3.01 Writer/Help for EN X4 Beta tester
12-29-2010 05:19 PM
After the uninstallation of OpenOffice 3.xx and the installation of Libre Office (L.O) 3.3 and reinstallation of EN X4 it is possible that the EN X4 extension doesn´t appear into Libre Office Writer.
According to the EN X4 Help, the EN X4 extension in L.O. Writer can be loaded as follows:
-In LB Writer go to the Tools menu and choose Extension Manager
-Click Add
-In the file dialog, navigate to the folder : Program Files/Common Files/ResearchSoft/CWYW14
-Select the EndNote.oxt and click Open.
-The ENCWYW extension will now appear in the list. Click Close.
-Exit Libre Office Writer and then restart it.
ENX4 commands appears on an EN X4 menu.
(Tested with WIN XP SP3, Win Vista Ultimate and Win 7 Professional with German Settings).
Today 2018:
For EN X8 and Win 10 home or pro, you find the oxt.file here:
*c:\Program Files (x86)\EndNote X8\Product-Support\CWYW*
click CWYW and , after opening, you see the oxt file.Click it as described above.
Good luck
Trensofty
