Linux - unzipping multipart-spanned zip archives - .zip .z01 etc

I wanted to unzip a multipart-spanned zip archive in Debian Jessie 8.3.

There was 2 files, one .zip file and one .z01 file.

In Windows WinZip would have done it. But the graphical zip tools in Debian failed to do it.

It turned out this worked:

zip -FF zipfile.zip --out out.zip

This created a new zip file, which could be unzipped as usual.

More about it here: http://unix.stackexchange.com/questions/40480/how-to-unzip-a-multipart-spanned-zip-on-linux