You are downloading the My Contacts Backup AppXBundle file v2016.1027.546.0 for Windows Phone. My Contacts Backup is a free and useful Productivity app: The fastest Contacts Backup app is here!Contacts Backup provides user with the options to Import and Export phone contacts to and from CSV ... You can now download the offline AppXBundle file to install & try it.
Download Locations for My Contacts Backup 2016.1027.546.0 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 My Contacts Backup AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.