EndNote X8 with Data Folder but no enl

I have recently moved from a PC back to a Mac and in doing so, thought I saved my library to a hard drive. However, on the HD I have a folder ‘EndNote Library.Data’, with ‘PDF’, ‘rdb’, and ‘tdb’ subfolders, but not .enl or .enlp files. Is there any way I can sync my new library using the .Data information, or worst case, reconstruct my library using the .Data folder? Many thanks in advance.

create a “text” type file using a text editor with nothing in it, called EndNote Library.enl located in the same folder as the .DATA folder.  Click that to open and you should be good.