NSF File Type

- The quick facts

What are NSF files and how to open them

Are you having problems opening a NSF file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a NSF file?

NSF files have multiple uses, and Lotus Notes Database is one of them.

Lotus Notes Database

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 NSF files

Important: Different programs may use files with the NSF file extension for different purposes, so unless you are sure which format your NSF file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different NSF openers which you will find listed below.

Last updated: June 9, 2022

More file formats using the NSF extension

Through our research of NSF files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • NATO Secondary Imagery Format
  • NES Sound Format rip

Various apps that use files with this extension

These apps are known to open certain types of NSF files. Remember, different programs may use NSF files for different purposes, so you may need to try out a few of them to be able to open your specific file.

IBM Lotus Notes/DominoIBM Lotus Notes/DominoUser submitted
WinDS PRO AppsWinDS PRO AppsUser submitted
Lotus NotesLotus NotesUser submitted
ContaNetContaNetUser submitted
NetO32 ApplicationNetO32 ApplicationUser submitted
ERDAS IMAGINEERDAS IMAGINEUser submitted
Microsoft Application VirtualizationMicrosoft Application VirtualizationUser submitted
Visual Dialog ScriptVisual Dialog ScriptUser submitted
foobar2000foobar2000User submitted
Opentext Offline ExtensionOpentext Offline ExtensionUser 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 NSF file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.