An nu3 file extension is related to the Norton Utilities and used for its backup files.
Software that open nu3 file
NU3 file extension - Symantec Norton Utilities backup
What is nu3 file? How to open nu3 files?
File type specification:
The nu3 file extension is associated with Symantec Norton Utilities.
The nu3 files are used for backup purposes.
Most likely some old format without support. No further information could be found.
This nu3 file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open nu3 file:
Company or developer:
Symantec Corporation
Norton Utilities is a set of tools used to clean up, tune up and speed up PC. Norton Utilities finds and fixes problems that can slow down the computer.
List of recommended software applications associated to the .nu3 file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open nu3 file, edit nu3 file, convert nu3 file, view nu3 file, play nu3 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with nu3 file - Symantec Norton Utilities backup
Click on the software link for more information about Norton Utilities. Norton Utilities uses nu3 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).