CN3D file format description

Many people share .cn3d files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cn3d file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cn3d files.

1 filename extension(s) found in our database.

.cn3 - Cn3D Data

The CN3 configuration files are related to Cn3D. The CN3 file is a Cn3D Data. Cn3D (see in 3D) is a helper application for your web browser that allows you to view 3-dimensional structures from NCBI's Entrez Structure database.

Configuration files
- / -
Cn3D Data related extensions:
Cn3D Data

Naturally, other applications may also use the .cn3d file extension. Even harmful programs can create .cn3d files. Be especially cautious with .cn3d files coming from an unknown source!

Can't open a .cn3d 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 .cn3d file extension is often given incorrectly!

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

c3d, cn3, cnd, n3d

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Cn3D Data
ControlDraw Diagram
Super 3D Noah's Ark Data
Coordinate 3D Data
Nuclear Studio 3D Scene
Chem3D Document

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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If you have useful information about the .cn3d file format, then write to us! >> CN3D file