I have a C # solution in Visual Studio 2017. It is a solution with several child projects, at least 6, and within these projects there is a hierarchy of folders and subfolders and classes. I need a free and preferably open source program so that I can generate the class diagram of every solution from the source code already deployed. I know there is a native Visual Studio solution that makes this code transformation into diagrams, but in this case, the generated format is a .cd, which I could not import into Visual Paradigm. Also, the generated diagram is for projects only, individually and I need a way to generate it for the entire solution. Do you have any suggestions?