This package provides an alternative to the default Zip implementation in the JDK. The primary use for this is to be able to modify existing zip files, and to navigate zip files more easily. From the User Level, the first class to look at here is the {@link ModifiableZipFile}. This is the class that allows you to open a zipfile, modify it, and apply the changes. In addition, this package contains several classes not meant for external use that can read and write sections of a zip file. To see examples of how this works, checkout the unit test TestModifiableZip.