You are downloading the Private Contacts XAP file v1.1.0.0 for Windows Phone. Private Contacts is a free Social App: Private Contacts is an app for creating "private" contacts on your phone which aren't synchronized with an online account. Also, 'private' contacts. You can now download the offline XAP package file to install & try it.
Download Locations for Private Contacts 1.1.0.0 XAP file
Package File
Please Click Here > to retrieve available package files for Private Contacts.
Please be aware that the Private Contacts XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Private Contacts or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Private Contacts XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.