An empty zip file can mean that your download was interrupted or corrupted. First, it’s best to re-download and unzip again.
Windows users:
Recent changes to Windows security have affected how some unzipped files display.
Some users have reported empty zip files — or only see a readme file — after extracting.
If you are a Windows user and this happens to you, then we suggest using an alternative unzip/extractor app like WinRAR, available for free here.