NAB File
What are NAB files and how to open them
Are you having problems opening a NAB file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your NAB files.
What is a NAB file?
A .NAB file is a Novell Groupwise Address Book file.
We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.
How to open NAB files
Important: Different programs may use files with the NAB file extension for different purposes, so unless you are sure which format your NAB file is, you may need to try a few different programs.
While we have not verified the apps ourselves yet, our users have suggested eight different NAB openers which you will find listed below.
Last updated: November 10, 2022
Various apps that use files with this extension
These apps are known to open certain types of NAB files. Remember, different programs may use NAB files for different purposes, so you may need to try out a few of them to be able to open your specific file.
 | Nero Burning ROM | User submitted |
 | GroupWise Internet Browser Mail Integration | User submitted |
 | Novell GroupWise | User submitted |
 | GroupWise ActiveComponents | User submitted |
 | MYEDIT | User submitted |
| Numeracy activity builder | User submitted |
 | Untis | User submitted |
 | Nero - Burning Rom | User submitted |
Help us help others
File.org helps thousands of users every day, and we would love to hear from you if you have additional information about NAB file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.
Not sure exactly what type of file you are trying to open? Try our new File Analyzer. It is a free tool that can identify more than 11,000 different kinds of files - most likely yours too! It will help you find software that can handle your specific type of file. Download File Analyzer here.