Its just utility for symbian device. Symbian zip manager is compression tool for symbian that can use for decompressed from outside the application by just clicking the compressed file icon which is available in the folder. The files are compressed and decompressed using LZW algorithm, it will make your file small up to 50%. Then you can deletion of the compressing file.

Its ideal tool for symbian, but this software is not freeware. You can receive a demo copy for free.