You are downloading the Viking APPX file v220.127.116.11 for Windows Phone. Viking is a free and useful Productivity app: Viking App is the official Mobile Vikings smartphone app that helps you get the most out of your Mobile Vikings bundle. Track your usage, save costs ... You can now download the offline APPX file to install & try it.
Download Locations for Viking 18.104.22.168 APPX file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline APPX File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Viking APPX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.