CELX file format description

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

1 filename extension(s) found in our database.

.celx - Celestia Script File

The CELX data files are related to Celestia. The CELX file is a Celestia Script File. Celestia is a 3D astronomy program created by Chris Laurel. The program is based on the Hipparcos Catalogue (HIP) and allows users to travel through an extensive universe, modeled after reality, at any speed, in any direction, and at any time in history.

Data files
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Celestia Script File related extensions:
Celestia CEL Script
Celestia Configuration Data
Celestia Model
Celestia Simple Model Data
Celestia Binary Database
Celestia Deep Space Catalog

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

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

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

cdlx, cel, cepx, cex, clx, elx

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Kisekae Set System CEL File
Lumena Cell Information
CIMFast Event Language Source Code
SolidWorks Enterprise PDM Exported Vault Settings
Adobe Audition Loop
Affymetrix Probe Array Results File

Operating systems

DataTypes.net 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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DataTypes.net >> CELX file