NSF File - opening and understanding

Did your computer fail to open a NSF file? We explain what they are used for and recommend software that we know can open or otherwise handle your .NSF files.

What is a NSF file?

A .NSF file is a Lotus Notes database file. Through our analysis of NSF files, we know that one use of the format is Lotus Notes database. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open NSF files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension NSF for different purposes.

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

Other file formats using extension .NSF

While Lotus Notes database is a popular type of NSF-file, we know of 3 different uses of the .NSF extension.

The NSF file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a NSF opener may not be able to open all kinds of NSF files. In this case, look through all formats to make sure you find the best suited NSF viewer.

NATO Secondary Imagery Format

Through our analysis of NSF files, we know that one use of the format is NATO Secondary Imagery Format. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

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

NES Sound Format rip

Through our analysis of NSF files, we know that one use of the format is NES Sound Format rip. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

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

Various viewers for this file format

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
IBM Notes/DominoIBM 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
We have not verified any software that we know for certain will work with NSF-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with NSF-files. If you know one, please use the 'Suggest a program' link below and tell us about it!