JZapper 1.0 (testing version) is an Java-based freeware, which allows compressing and decompressing files of most file types like '.txt', .xml', etc., in ".zip" format. It is based on the JDK 3.0 Zip Technologies. Generally, Zip files are archives used for storing and distributing files, and can contain one or more files. Usually the files archived in a Zip are compressed to save space. Send comments or bugs to mbala_k@yahoo.com. Thank you for trying JZapper.