.nbu is the backup file of Nokia phone. It's created by Nokia PC Suite. And it can be open/covert/extracted using Noki from www.nokisoft.com.
syllabus of BA part III under NBU
if you are looking to open Nokia PC Suite Backup file then you can use Noki (www.nokisoft.com, Full featured backup file explorer: support .nbu, .nfb, .nfc, contacts.cdb and backup.arc - SD card backup files). or free NBUparser developed by allnokia.ru users. or another free software called NbuExplorer.
The address of the Prague Historical Society Inc is: 8601 Nbu, Prague, OK 74864
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ---NBU-. That is, seven letter words with 4th letter N and 5th letter B and 6th letter U. In alphabetical order, they are: hornbug
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern --NBU----. That is, nine letter words with 3rd letter N and 4th letter B and 5th letter U. In alphabetical order, they are: nonbuying sunburned sunbursts
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -NBU-S-. That is, seven letter words with 2nd letter N and 3rd letter B and 4th letter U and 6th letter S. In alphabetical order, they are: inburst
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern S-NBU--. That is, seven letter words with 1st letter S and 3rd letter N and 4th letter B and 5th letter U. In alphabetical order, they are: sunburn
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern G---NBU--. That is, nine letter words with 1st letter G and 5th letter N and 6th letter B and 7th letter U. In alphabetical order, they are: greenbugs
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -NBU--D. That is, seven letter words with 2nd letter N and 3rd letter B and 4th letter U and 7th letter D. In alphabetical order, they are: unbuild
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --O-NBU--. That is, nine letter words with 3rd letter O and 5th letter N and 6th letter B and 7th letter U. In alphabetical order, they are: thornbush
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --NBU--S. That is, eight letter words with 3rd letter N and 4th letter B and 5th letter U and 8th letter S. In alphabetical order, they are: sunburns
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 12 words with the pattern -NBU-----. That is, nine letter words with 2nd letter N and 3rd letter B and 4th letter U. In alphabetical order, they are: inburning unbuckled unbuckles unbudging unbundled unbundler unbundles unburdens unburrows unburthen unburying unbuttons