The JCL Editor is associated with the following file extensions: .jcl, .job,
and .prc. It provides language-specific enhancements
such as highlighting syntax errors and source actions.
The System z® LPEX Editor
is the default editor for JCL files. You can change the default by
using the File Associations preference page.
For more information about setting the JCL Editor as the default for
JCL files, see Choosing a default editor.