CNTK file format description

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

1 filename extension(s) found in our database.

.cntk - Microsoft CNTK Data

The CNTK development files are related to Microsoft CNTK. The CNTK file is a Microsoft CNTK Data. Microsoft CNTK (Cognitive Toolkit) is a framework for describing learning machines. Although intended for neural networks, the learning machines are arbitrary in that the logic of the machine is described by a series of computational steps in a Computational Network.

Microsoft CNTK
Development files
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Microsoft CNTK Data related extensions:
WinDev Classes Data
Sybase PowerBuilder Source Code Library
Alpha Five Runtime Users Data
XPLATFORM Screen Form Definition
Luca Template
Multimedia Fusion Compressed Data

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

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

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

cnk, cnt, cntl, ctk, ntk

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

TeKton3D Project Chapter Data
602PC Suite Macro
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Hidden and Dangerous Game Content
Microsoft Dynamics GP Chunk Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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