You are downloading the Offline Books XAP file v220.127.116.11 for Windows Phone. Offline Books is a free and useful Books & Reference app: Offline Books App - Many books that you know, many books that you’ve missed, many books that you want to read. You can read them whenever you want, ... You can now download the offline XAP file to install & try it.
Download Locations for Offline Books 18.104.22.168 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 Offline Books XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.