NBU backups from Nokia phones can contain many various data, including messages, contacts or even multimedia (recorded voice messages, songs etc.). Some specialized backup extraction utilities like the ABC Amber NBU Converver can be for example used to extract any mp3 files located within nbu backup.
Convert Nokia PC Suite 6.82+ backup to Compressed audio and music file, mp3 songs or ringtones.
We found one software available in the database for this conversion.
Microsoft Windows software - convert nbu to mp3 on Windows
A converter utility for NBU backups
Convert from nbu file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.