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.NBU File Extension

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File TypeNokia Phone Backup File

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CategoryBackup Files


This file is saved in a binary format, which requires a specific program to read its contents.


Backup file created by Nokia Suite (formerly Nokia Ovi Suite) or Nokia PC Suite; contains a backup of cell phone data and may include contacts, calendars, text messages, and other user data; used for restoring data to the same phone or transferring data to another phone.

More Information

NOTE: Nokia PC Suite became Nokia Ovi Suite, which was later renamed to Nokia Suite. Nokia Suite still creates backups using NBU files.

Program(s) that open .NBU files
Microsoft Windows LogoWindows
Nokia Suite
Nokia PC Suite
Nokisoft Noki
Jumping Bytes Mobile Master
Updated 3/11/2013