Release 10.1A: OpenEdge Getting Started:
Object-oriented Programming

Saving and opening class files

The OpenEdge Procedure Editor Save As dialog box allows a file to be saved as a procedure file (.p), a window file (.w), an include file (.i), or a class file (.cls). This allows you to create a class or interface in the procedure editor and save it as a class file.

Similarly, the OpenEdge Procedure Editor Open File dialog box allows you to filter and open any of the file types that you have saved using the Save As dialog box.