>> CGNS file

CGNS file format description

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

1 filename extension(s) found in our database.

.cgns - CFD General Notation System Data

The CGNS data files are related to CFD General Notation System. CGNS file is a CFD General Notation System Data. The CFD General Notation System (CGNS) provides a general, portable, and extensible standard for the storage and retrieval of computational fluid dynamics (CFD) analysis data.

CFD General Notation System
Data files
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CFD General Notation System Data related extensions:
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Naturally, other applications may also use the .cgns file extension. Even harmful programs can create .cgns files. Be especially cautious with .cgns files coming from an unknown source!

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

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

cgs, cgn, gns, cns

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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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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