Problem solved. I had the wrong version of Java. Thanks

The problem is that I do not know how to run the program. I downloaded it and do not know how to install it. I'm in Windows- options x64 - j3dcore-ogl.dll. Nothing happens. I have windows 7 64 bit. How to Start?

I downloaded the file but I don't know what to do. Can anyone write how to do it step by step? Thank you

Hello. I apologize in advance for incorrect writing. I am from Poland. I have a question. Is it possible to import a large amount of furniture? How to create a library of furniture in sh3f? I will be grateful for help