File extension NSF (.NSF) information

Windows cannot open NSF files?

If Windows is unable to open file extension .NSF you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

The .NSF file extension identifies a Lotus Notes Database file which belongs to the Lotus Notes suite by IBM. A Lotus Notes database file can be quite large and may contain lots of personal or corporate data. Lotus Notes can be used to access such a database, or it can be hosted using the Lotus Domino software solution.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair NSF file extension association errors.


  • Performance: To optimize memory and CPU usage for NSF files run a free performance scan.
  • Stability: Fix NSF errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.