I tried to access to the course content using WinRAR and 7-Zip under Windows 10, but these pieces of software are not able to unpack the archive properly.
Any help please?
I used winrar.
First decompress the file you downloaded (use dx muose button, extract in xyz folder), then rename the file extracted adding .zip extension. Now you can extract the course artifacts.
When unzipping, I didn't see each files were duplicated with almost the same name. And those beginning with "._" can not be open, but it is OK for others!