I dunno why we even choose to have a lab on Atlas !!
This is more frustrating than ever. I have wasted countless hours just trying to figure this gosh darned thing out !! Time is of a premium to me.
It was much simpler before when we could download the database onto our laptops regardless of OS and execute the exercises there.
I have responded on your other post. Please follow the instructions for the resolution of the issue.
You can still download the dataset on your laptop and do the labs. Please refer this pinned post for getting access to all the datasets that we have used in our course.
Hope it helps!
If you have any other issue, please feel free to get back to us.
Happy Learning 
Thanks,
Shubham Ranjan
Curriculum Support Engineer