stall food cart with man 3D print model

When I bought this I expected to receive all the parts as separate files as per image 4/11 showing all parts separate. Unfortunately all I was able to download was an .obj file and a ,rar file despite it showing that a .stl file was available which is what I wanted. I sent a message straight back to the seller but have had no reply. EDIT: I have now had a good response from the designer who will send the separate files as I need. He did not get my initial message via CGTrader response system so not his fault.