Notes about the NJB file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The NJB file type is primarily associated with 'Nikon Digital SLR Camera' by Nikon Inc.. An index of the picture files taken by the camera. Usually found in the MISC folder on the memory card.