اینم نرم افزار برای  Unzip فایلهای ...  z01, .z02 که درخواست شده بود

If after download u see such files like:

.z01
.z02
.z03
.z04
.z05

Don't try to open them with winrar. It will say about damaged file. It's not true.

U must use small free application like:
HJSplit - can merge such files in one big standard rar and then u can unpack such rar with winrar.
 

DownLoad :
http://www.freebyte.com/download/hjsplit/hjsplitpro.zip