Found one file extension association related to JCT and 1 file format developed specifically for use with JCT.
Platform, operating system: Multiplatform
Go to: JCT description
SourceForge software list & details
Developer / company: SourceForge
JCT lets you draw and edit thematic maps. It was made by two EIVD students (Switzerland) for DFJ. JCT is written in Java, it runs on Mac OS X, Windows and Linux. It is free software, under GNU GPL licence.
Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.
JCT default file extension associations
Comparison table of actions that JCT can perform with its associated file type beta
This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of JCT (SourceForge.net), or check out their product website.
File type \ Action