A CELX file is a script file primarily associated with Celestia, a 3D astronomy and space simulation application. Files with the `.celx` extension contain scripting instructions that can automate actions within Celestia, including selecting planets and stars, moving the viewpoint, controlling the camera, displaying information, and creating automated space tours.

A CELX file is a script file primarily associated with Celestia, a 3D astronomy and space simulation application. Files with the `.celx` extension contain scripting instructions that can automate actions within Celestia, including selecting planets and stars, moving the viewpoint, controlling the camera, displaying information, and creating automated space tours.

A CELX file is a script file primarily associated with Celestia, a 3D astronomy and space simulation application. Files with the `.celx` extension contain scripting instructions that can automate actions within Celestia, including selecting planets and stars, moving the viewpoint, controlling the camera, displaying information, and creating automated space tours.