EndNote X8 with Data Folder but no enl

I have recently moved from a PC back to a Mac and in the process thought I saved my library to a hard drive. On the hard drive however, I have an ‘Endnote Library.data’ folder with ‘PDF’, ‘rdb’, and ‘tdb’ subfolders, with no .enl or .enlp. Is there any way I can sync EndNote using the data folder, or worst case, just use the data folder ro reconstruct the Library? Many thanks in advance.