You are downloading the BooleBox AppX file v184.108.40.206 for Windows Phone. BooleBox is a free and useful Productivity app: Do you need to share or consult confidential documents and sensitive information without running the risk that they may be viewed by someone who is ... You can now download the offline AppX file to install & try it.
Download Locations for BooleBox 220.127.116.11 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 BooleBox AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.