Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .nu3

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .nu3 file?
  • Which program can create the .nu3 file?
  • Where can you find a description of the .nu3 format?
  • What can convert .nu3 files to a different format?
  • Which MIME-type is associated with the .nu3 extension?
Norton Utilities Backup Data .nu3 file icon

Norton Utilities Backup Data

The NU3 file is a Norton Utilities Backup Data. Norton Utilities is a utility software suite designed to help analyze, configure, optimize and maintain a computer.
Detailed description not available
Category: Data files
Application: Norton Utilities
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Norton Utilities FileSaver Volume Data
Norton Utilities FileSaver Index Data
Norton Utilities FastFind Data
Norton Utilities FileSaver Data
Norton Utilities UnErase Data
Norton Utilities Disk Doctor Data
Norton Utilities Data
Norton Utilities Speed Disk Data
Norton Utilities Data

Other types of files may also use the .nu3 file extension. If you have helpful information about .nu3 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Myriad Packed Musical Score
Notation3 Document
Unreal 2: The Awakening Game Data

The .nu3 filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

un3 (1), mu3 (1), n3 (1)

Can't open a .nu3 file?

If you want to open a .nu3 file on your computer, you just need to have the appropriate program installed. If the .nu3 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.nu3

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android