Browse your server directories to find the zip file you want to unzip. Click the file to unzip it. Please make sure you have given appropriate permissions!
Index of /usr/share/gems/specifications
..defaultbigdecimal-1.2.0.gemspecio-console-0.4.2.gemspecjson-1.7.7.gemspecpsych-2.0.0.gemspecrdoc-4.0.0.gemspec