| File Extension: | NAB |
| File Type Description: | Netscape Communicator Addressbook |
| File Type Developer: | NetScape |
| Primary Associated Software: | Netscape Navigator |
| Primary Software Developer: | NetScape |
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Netscape Communicator Addressbook files are the most popular type of files to carry the NAB file extension, originally developed by Novell, Inc. for GroupWise. Annoymous user data statistics infer that NAB files are most popular in United States and with those using Windows 10 devices. Google Chrome is the predominant internet browser used by this population.
 | Netscape Navigator by NetScape |
 | Nero Multimedia Suite by Nero AG |
 | GroupWise by Novell, Inc. |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
 | Android |
 | Linux |
 | Solaris |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .SMS | Sega | Game Files | Sega Master System ROM |
| .CERT | AOL | Web Files | Netscape Certificate Index |
| .XUL | Mozilla | Web Files | XML User Interface Language File |
| .HST | Yahoo! | Data Files | History File |
| .MOZ | Mozilla | Web Files | Mozilla Cache File |
| .ETF | NetScape | Text Files | Enriched Text Format E-mail Message |
| .RWX | AOL | Data Files | Netscape Live 3D File |
| .MSF | Mozilla | Uncommon Files | Mail Summary File |
| .ZH | AOL | Data Files | Netscape Communicator Java Classes File |
| .RCG | Neil Fraser | Data Files | Recog Character Recognition Set |
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