How to unzip/extract 7z compressed files in ios

Question

I need to unzip/extract 7z compressed files in ios, Can anyone say the libraries used to do this,where are those libraries available to download.I there any

Answer 1

iOS9 comes with LZMA support (encoder until level 6, decoder all levels). Of course this only helps if you just need the compression – if you absolutely need to read the 7z archive / container format you'll need an external library.

https://developer.apple.com/library/prerelease/ios/documentation/Performance/Reference/Compression/index.html