Copyrights apply to this source code. You may use the source code in your own projects, however the source code may not be used to create training material, courses, books, articles, and the like. We make no guarantees that this source code is fit for any purpose.
.tgzfile is a gzip-compressed tar archive, and can be extracted with a command such as:
$ tar xzf ves6-code.tgz
.zipfile is a standard Zip archive, and can be extracted with (for example):
C:\temp> unzip ves6-code.zip
Although not universally true, zip files are more commonly used on Windows systems, while tar files are used on Unix-based systems. You may need to download a separate utility to extract files from an archive on Windows.