Among the many products sold by Nokia are its cell phones, which use files with the extension .nbu for backup.
Identification
NBU stands for Nokia phone Backup. You are most likely to find an NBU file in your Documents folder or in a Nokia PC Suite file folder.
Function
The NBU file extension allows your computer to identify the file as a backup used by Nokia software.
Uses
When you sync your Nokia phone to your computer using a USB connection and Nokia PC Suite, you can back up calendar appointments and address-book contacts on your computer.
Benefits
If the SIM card for your cell phone ever becomes damaged, you can recover lost information using the NBU files saved on your computer. Additionally, NBU files can be used to transfer information if you buy a new Nokia phone.
Considerations
NBU files can only be transferred to your phone through Nokia PC Suite. You will not be able to open the file if the program is not properly installed.
Tags: your computer, Nokia phone, Nokia Suite