You are downloading the Lock Message AppXBundle file v2015.110.2316.1249 for Windows Phone. Lock Message is a free and useful Productivity app: Personalize your lock screen message! Unlike other lock screen apps, Lock Message only changes the message section of your lock screen, ... You can now download the offline AppXBundle file to install & try it.
Download Locations for Lock Message 2015.110.2316.1249 AppXBundle file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline AppXBundle 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 Lock Message AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.