Copy MOBI File to Kindle Double-click the Kindle Drive to open it. You will see something like this: Your books are stored on your Kindle inside the “documents” directory, as seen above. Right-click on the “documents” folder, and select “PASTE.” This will copy your MOBI file onto your Kindle.

Connect your Kindle device to your PC using a USB cable. In Windows Explorer / File Explorer your Kindle will either appear as an additional drive, or as a Kindle device. In either case copy the “.mobi” file into the folder “Books” (Kindle Fire devices) or “Documents” (Kindle Paperwhite and older devices) in the device’s internal storage.