How to Open RAR Files on Android and other compressed files like Zip, TAR, GZip. Samsung Galaxy default file manager don't support compressed files, and Nexus series don't have a file manager at all. So, To open and unpack Rar files on your Android phone or tablet, do as follows:
1. Download, install and open ArchiDroid (Download ArchiDroid from Google Play)
2. Tap "Unpack Archive"
3. Specify the Archive file path
4. Specify the output path
5. Tap "Unpack"