All about CNX Files

The CNX file type is primarily associated with Kneura TutorPlus.

CNX	File extension: CNX
	File type:	structured content file

What is a CNX file?

CNX files mostly belong to Kneura TutorPlus. CNX files come in different variants. The most common are Kneura Canvas files, which use XML to store canvas learning content for systems like Kneura TutorPlus and Kneura Teach. These files hold structured data for interactive educational modules and can be opened with an XML editor or the native e-learning application.
Another variant is an XML data file produced by WinWerth. These files are plain XML that hold general structured content. For more on this, visit the WinWerth website.
A third, less common type is a GMP graphics file from GMPlayer. In this case the CNX file contains game sprite information used in game development.
Key details provided by FilExt.com:

Kneura Canvas files: Store educational module data in XML format.

XML data files: Hold structured data for various applications.

GMP graphics files: Contain game sprite graphics.

FilExt.com tip: You can view XML content with a simple text editor, but using the dedicated software offers a better experience.

How to open a CNX file

You need a suitable software like Kneura TutorPlus to open a CNX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CNX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CNX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CNX Text Viewer

Choose your .cnx file to analyze

or drag and drop it here

Online File Viewer

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CNX file format:

The file format determines how the data is stored in the file. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So you need a detailed analysis of a file to find out the format and the associated program. Our examination of the CNX files comes to the following conclusion:

The CNX file extension is not found very often and is used by a few programs, each with its own file format. But the following two file formats are common:

• 40% of all CNX files save the data in XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files are text files and can therefore be read using a text editor. Most of these files are 100 KB to 3 MB in size. It is a modern file type. The following keywords are characteristic: <Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:cnxnuispc="clr-namespace:CNX.NUI.ScratchPad.Composition;assembly=iscore" xmlns:x="http://schemas.microsoft.com/winfx/200. A common filename is 2020-06-01.cnx or Tutorial 1.cnx. Files like these are about clase.
• 8% of all CNX files use the same file format, which have the signature CNX. They consist of unreadable binary data. A typical file size is 42 KB. The following keywords are characteristic: MP-200.

The remaining 52% of all CNX files are different files with different signatures, frequently e.g. TDS and Identity. Files like these are sometimes linked to conexion, type, track, navi or connect. Just click the "Choose your .cnx file to analyze" button on this page to find out what your CNX file is.