File could not be opened as archive

This is probably a dumb question, but I can’t actually open download the source code correctly.

I’ve downloaded the 4.0.2 two required zip files to copy into the source code folder, but the first one pops this message whenever I try to extract its content :

Windows cannot open the folder.
The compressed (zipped) folder ' is invalid.

I can’t even open the required zip file to install the source code. Anyone has any clue on what to do to handle this issue