You are downloading the KarttApp XAP file v188.8.131.52 for Windows Phone. KarttApp is a free and useful Travel app: Features:- several map types available, also terrain mapsand ortho images by NLS of Finland and Finnish Transport Agency nautical maps- ... You can now download the offline XAP file to install & try it.
Download Locations for KarttApp 184.108.40.206 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP 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 KarttApp XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.