How can I back up my EndNote library?
Answer
Simply use File - Compressed library to save everything you need. You will need to open the file again from within EndNote rather than double clicking it. Your EndNote library actually contains 2 parts: an .enl file and a .data file which looks like a folder, for example:
Both of these are necessary for your EndNote library to work. The compressed library command will save both of them. Keeping regular back- ups of both your EndNote library and your word files is key to avoiding problems.