>> QTN file

QTN file format description

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

1 filename extension(s) found in our database.

.qtn - Symantec Mac OS X Endpoint Protection Quaraintined File

The QTN other files are related to Symantec Endpoint Protection. QTN file is a Symantec Mac OS X Endpoint Protection Quaraintined File. Symantec Endpoint Protection is a client-server solution that protects laptops, desktops, Windows, Macs and servers.

Symantec Endpoint Protection
Other files
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Symantec Mac OS X Endpoint Protection Quaraintined File related extensions:
Starmoney Macro File
Spotify Executable Redirect
Sound Forge Batch Job
SketchUp License FIle
SketchUp Zipped Ruby Plug-in
Skype Content File

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

Can't open a .qtn 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 .qtn file extension is often given incorrectly!

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

qfn, qth, qtb, qnt, tn, qtg, qrn

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

QuickTime Player Font Data
QuickTime Movie
Chromeleon Quantification Method
ExamView Question Bank Data
QTgrader Data
WinOrbit Observer Database

Operating systems

DataTypes.net 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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