You are downloading the Siddur Nusach Ari AppX file v18.104.22.168 for Windows Phone. Siddur Nusach Ari is a free and useful Books & Reference app: Siddur based on the nusach of Tehillas Hashem.Currently contains שחרית, מנחה, מעריב, ברכת המזון, קריאת שמע ... You can now download the offline AppX file to install & try it.
Download Locations for Siddur Nusach Ari 22.214.171.124 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 Siddur Nusach Ari AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.