If the RAR Part 1 and Part 2 files aren’t working for you, try using the ZIP files instead—look for the ones with the .z01 and .zip extensions. They contain the same version of the content.
If neither of those options works, you can use the fallback version I’ve provided as a last resort, the two files with DX11 in their name.
Make sure the .zip and .z01 files are in the same folder, and that their names match exactly, except for the extensions.
Also, don’t try to open or extract the .z01 file directly, only open the .zip file using a program like 7-Zip or WinRAR.
If you're still getting an error, try updating 7-Zip or WinRAR to the latest version, that usually fixes most extraction issues.