To export an EndNote Library to Zotero:
To export your EndNote library for use in Zotero, click "File" and then "Export." Set the output style to "RefMan (RIS) Export" and save it as a text file. You may need to search "other styles" to find RefMan (RIS).
In Zotero, click the button that looks like a gear and choose "Import." Just double-click the file you exported from EndNote.
From https://support.clarivate.com/Endnote/s/article/EndNote-Transferring-References-from-Zotero-to-EndNote?language=en_US
Jun 28, 2022
Open Zotero.
Please note that you may get the "EndNote Select Matching Reference" dialog box when formatting the bibliography, please click at EndNote: Select Matching Reference for information on how to resolve this.
See the following video for detailed instructions: