NeXTSTEP sound format
File type: Audio and sound file
An nxt file extension identifies a sound file associated with the NeXTSTEP operating system. An nxt file stores audio data.
File type category:
Audio and sound file
Date updated: October 11, 2026
Record marked as obsolete and not updated for a long time.
The nxt file extension is associated with NeXTSTEP, an operating system developed by NeXT, Inc., the company founded by Steve Jobs after he left Apple, Inc.
An nxt file contains sound data in the audio format used by NeXTSTEP. It belongs to the system's legacy audio software rather than to a current general-purpose audio standard.
Apple acquired NeXT in 1996, and parts of NeXTSTEP became the foundation for Mac OS X. The NeXTSTEP sound format is now obsolete, although related legacy software may still run in some Linux or Unix environments.
Open an nxt file with the NeXTSTEP audio playback tools, if a NeXTSTEP environment is available. These tools are generally not included with current desktop operating systems.
On Linux or Unix, a compatible legacy NeXTSTEP tool may be required. Modern audio players may not recognize this obsolete format directly.
If the file can be opened in a compatible NeXTSTEP or legacy Unix environment, export or record the playback to a current audio format there.
Apps designed for playing nxt files:
Linux/Unix
Language
