I’ve had some reports that some of the zip and 7zip archives are not extracting properly.
Generally I recommend people use 7zip on Windows and The Unarchiver for Mac OS X, but in some cases these do not work.
If you’ve run into any problems, please comment below with info on which file(s) you’re having problems with and the extraction utilities you’ve tried.
Mac users with problems should try out Keka as this seems to work with all the archives I’ve thrown at it. I’ve not been able to test on Windows yet, but if you’ve found a solution please let me know.