You are downloading the VoidLocator AppX file v0.0.1.0 for Windows Phone. VoidLocator is a free and useful Travel app: Advertising and Location ... You can now download the offline AppX file to install & try it.
Download Locations for VoidLocator 0.0.1.0 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 VoidLocator AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.