You are downloading the Meshitero AppXBundle file v2015.1113.2341.0 for Windows Phone. Meshitero is a free and useful Social app: "Meshitero is a brutal and despicable act to stimulate the appetite of good citizens indiscriminately."--From Nico Nico douga ... You can now download the offline AppXBundle file to install & try it.
Download Locations for Meshitero 2015.1113.2341.0 AppXBundle file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Meshitero AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.