Please note that this article is for users that has been shared a library from others. Not for users who have shared a library to others (for you the library is stored exactly where you saved it when you created it).

When you open a shared library in EndNote (File > Open Shared Library...), the library get downloaded to your computer and stored in these locations:

Windows 10

C:\Users\"YourUserName"\AppData\Roaming\EndNote\Libraries

If you cannot see the AppData folder on your system (some folders and files are be default hidden by Windows):

How to view hidden files and folders in Windows 10

1. Open File Explorer from the taskbar. (Ctrl+E)
2. Select View > Options > Change folder and search options.
3. Select the View tab and, in Advanced settings, select Show hidden files, folders, and drives and OK.

Mac

On Mac OS computers the shared libraries are stored here:

/Users/"UserName"/Library/Application Support/EndNote/Libraries

How to open a shared EndNoteOnline library?

When someone shares an EndNote library with you through the EndNote: File> Share library feature, you will receive an email inviting you to accept the sharing. Once you have confirmed this (by clicking the link in the email), the library will be downloaded to your computer (to the folders specified above) and you can open it by selecting EndNote: File> Open Shared Library (and selecting the email address of the person who shared the library with you).

Note that you cannot open the library if you are offline / not connected to the Internet. This is because you need to be authenticated (the system needs to know that it really is you) in order to open a shared library.