ConTeXt Markup Language (.ctx)
The CTX file extension is associated with the ConTeXt Markup Language, a typesetting system used for creating structured documents. It is primarily utilized for document layout and design, offering advanced typographic features and flexibility. ConTeXt was developed by Hans Hagen and Ton Otten in the early 1990s as an alternative to LaTeX, aiming to provide a more integrated and user-friendly approach to document preparation. The CTX file format is part of this system, enabling the creation of high-quality, publication-ready documents.