Zip files are "archives" used for distributing and storing files. Zip files contain one or more files. Usually the files "archived" in a Zip are compressed to save space. Zip files make it easy to group files and make transporting and copying these files faster.
You can download a fully functional evaluation version from the WinZip Download Page
Once you download and install WinZip software follow these easy steps to unzip music files.
Right click on zipped file and click on Extract to… (Click on “Use Evaluation Version” in popup menu) then select the folder where you want to save your file. For example C:\My Music
OR
Right click on zipped file and Pointe to WinZip… and the click on Extract to… (Click on “Use Evaluation Version” in popup menu) and select folder
There is so many ways to unzip files this is one of them.
If need more help with WinZip View a list of frequently asked questions (FAQs) on WinZip web site.