>> NU3 file

NU3 file format description

Many people share .nu3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .nu3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .nu3 files.

1 filename extension(s) found in our database.

.nu3 - Norton Utilities Backup Data

The NU3 data files are related to Norton Utilities. 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.

Norton Utilities
Data files
- / -
Norton Utilities Backup Data related extensions:
Norton Utilities SendTo Data
CBA III Battery Test Data
GhostScript Data
Adobe Acrobat Key Data
Adobe Acrobat TWAIN 1.8 Specification Data
CorelDream 3D Graphics Data

Naturally, other applications may also use the .nu3 file extension. Even harmful programs can create .nu3 files. Be especially cautious with .nu3 files coming from an unknown source!

Can't open a .nu3 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .nu3 file extension is often given incorrectly!

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

mu3, n3, un3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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