Having problems unzipping the COINS data on Mac? [Solution]
It seems the out of the box unarchiver on OSX can't deal with large files, such as the COINS fact table. It spits out a cpgz file, which if you try to unzip just creates another zip, and so on, and so on.
Thankfully I managed to unzip it using Keka (http://www.kekaosx.com/en/), which is an OSX form of 7zip. This worked without any problems. Just thought I'd share in case anyone else was having any difficulties.
Springy can also expand the file nicely.
If you don't want to use a new program though, you can expand the ZIP file from the terminal by using the ditto program:
ditto -xk filename.zip destinationFolder
It's also worth noting that the character encoding is UTF-16LE, which seemingly isn't supported by less (it'll claim the file looks like binary data).
George.