Where are the kext files?

Hi,

When I download the pre-compiled zip as instructed in dortania.github.io, for ex - Lilu-1.5.1-RELEASE.zip from https://github.com/acidanthera/Lilu/releases I get Lilu.kext Folder and not a file.

Inside it there is another Lilu file without any extension.

Do I have to put the folder or the file without any extension in the Kexts folder? According to this it should be a file and not a folder.

Thanks in advance