You are downloading the Lumos Reader AppX file v126.96.36.199 for Windows Phone. Lumos Reader is a free Books & Reference App: Lumos is Indonesia's Largest local eBook Portal. This app is the Lumos ebook reader, which allows users to read epub ebooks which serves. You can now download the offline AppX package file to install & try it.
Download Locations for Lumos Reader 188.8.131.52 AppX file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Lumos Reader AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.