This is my first Arduino project so please excuse stupid questions. My question is What is the function of VC0706CommTool(EN) Setup V1-00.exe? Is there an equivalent for the MAc?
I don't know of anything, other than to run a Windows virtual machine.
However, you might try CodeWeavers Crossover. I've never tried it, and there's no guarantee it will run the VC0706 Comm Tool. But it's free to try, and you don't have to actually install Windows.