.CL file extension

This is the basic program to work with .CL extension

Visual Prolog

Visual Prolog Vip 7 Class

If you ever thought of developing your own application, the Prolog Development Center offers you a comprehensive software program that allows you to fully control the details of your project, such as environment, variables, parameters and other settings. The program is called Visual Prolog, and it's based on the logic programming language Prolog... (more)

The program works with the following extensions: i, cl, ph, pro, pack and prj6