8 Zip is a cool Windows phone application which allows you to open RAR, ZIP, 7z, ZipX, ISO, BZIP2, GZIP, TAR, ARJ, CAB archive files. It also supports creating archive files. The format supported are ZIP, 7z, TAR, GZIP, BZIP2 and XZ.
When you use archive such as 7Z and Zip you can also use strong AES-256 encryption.
Create archive file (ZIP, 7z, TAR, GZIP, BZIP2, XZ)
Open archives (RAR, ZIP, 7z, ZipX, ISO, BZIP2, GZIP, TAR, ARJ, CAB...)
Strong AES-256 encryption in 7z and ZIP formats
Multi-volume archives extraction support
Extract files form archive
Add and delete files from archive
Open files in archives
This application have a lite version which is Free and a full version which is Free for a limited time now, you will have to pay for this application otherwise. Read more and Get the application from the Windows Store
This is a universal application, you can use it on your Windows Phones and PCs.