Any library created or updated by EndNote on a Macintosh can be used by EndNote X and later for Windows. No conversion is necessary. However, make sure the name of the library includes the ".ENL extension (for example, Medicine.enl) and include the associated .DATA folder.
If you are on a network, copy the file from the Macintosh to the PC. Otherwise, use a file transfer utility to move the library from the Macintosh to a removable storage disk and then to the PC. Make sure you also copy the DATA folder found in the same folder as the library.
Note: If you plan to send an EndNote library to another EndNote X or later user, there is an easy way to compress all of your library files and folders into a single file. See Saving a Compressed Copy of a Library.
Start the EndNote program in Windows. (If you see a dialog prompting you for a reference library file, select Cancel.
From the File menu, select Open, and then select Open Library. Use the "Look in" list to navigate to the location of the library you want to open.
If your library does not have the extension ".ENL or *.LIB it will not appear in the dialog. If that is the case, select All Files *.* from the file type list at the bottom of the dialog, and you should be able to see your library.
Select your library and click Open.