This is a tar.gz file which can be downloaded to your personal computer, so you dont have to connect to the network every time you want to read the SQLUnit documentation. You will have to make a subdirectory and gunzip and untar inside that subdirectory.
Here is the sequence of instructions (for Unix/Linux users) to build the documentation locally.
$ mkdir sqlunit-docs $ mv /download/dir/htdoc.tar.gz sqlunit-docs $ cd sqlunit-docs $ tar xvzf htdoc.tar.gz
You can access this from the browser using a file URL from your browser, like so:
Make sure to check back from time to time, though, since there may have been bug fixes and feature enhancements in future releases that you could probably take advantage of.