how do I export an EndNote Library to Reference Manager?
Reference Manager 9.5, 10 and 11 can directly import an EndNote 7 or earlier library. EndNote 8 and 9 have a library format that Reference Manager is unable to convert directly. In order to import the references into Reference Manager the format of the library must be changed. For further details on both of the above scenarios, see Reference Manager Import FAQ No. 3 (external site).