Help doing Lab one with Linux

I cant figure out why i cant get the the first lab to work on my linux machine. I added it to vm and to logic file and neither work. in vm it fails because it says it cant determine the file size, in logic it says it loads but it completely empty and says its a size of 0. What gives whats going on?

The data provided for the online training are disk image files, not VM (virtual machine) images nor to be added as logical files.

Thank you! idk how i missed that ugh lol