.nsf

File Type 1 Generic IconLotus Notes Database
File Format Proprietary (IBM)
Usage Open manually; may be referenced by an application
Rank ★ ★ ☆  Average
Description

Database file used by IBM Lotus business software; saved in the Notes Storage Facility (NSF) format, which stores data in document units called "notes;" used for storing collaborative business information such as mail and calendar data.

NSF files are often hosted by a Lotus Domino server, and they can be downloaded by Lotus Notes clients in order to work with a fully functional database in offline mode. If the client makes changes to the database, Domino includes the facilities to synchronize the changes back to the master database. NSF files can also be used for the process of data replication.

Important: NSF files may also serve as a Domino Web application that is hosted on a Web server, where the URL has a trailing ".nsf" string. These files include the Domino Web Service Design Element, which enables Web access.

Open With
Windows

IconIBM Lotus Notes

IconIBM Lotus Domino

IconStellar Phoenix NSF to PST Converter

Updated 2007
File Type 2 NES Sound Format File IconNES Sound Format File
File Format Standard
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

Music file from an original Nintendo (NES/Famicom) game; allows music from Nintendo games to be played without loading the actual game; can be opened by a variety of NSF players.

Open With
Windows

IconDeliPlayer

IconVirtuaNES

IconAudio Overload

macOS

IconAudio Overload

IconNestopia

Unix

IconAudio Overload

IconXMMS with nsf-xmms plugin

IconFCEUX

Updated 2007
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