This is the file extension used for application packages on Windows Phone 7, 8, and 8.1. It is essentially a compressed ZIP file containing the app's code, assets, and deployment manifest.
High-end Lumia devices (like the Lumia 1020 or 930) still feature incredible PureView cameras and Carl Zeiss optics. They make excellent pocket cameras.
to "deploy" the file from your computer to the phone via USB. SD Card Method : Copy the download whatsapp xap file for windows phone
If you want to install the WhatsApp XAP for preservation or display purposes, follow these steps to sideload it. Prerequisites: A Windows PC. A USB data cable. A Windows Phone running WP 8.1.
– Click the Deploy button. The tool will push the app to your phone. Wait for “Success” message. This is the file extension used for application
If you still need WhatsApp on a mobile device but love the Lumia hardware:
The Windows Phone Store is officially shut down. They make excellent pocket cameras
You cannot verify your phone number on these platforms anymore.
Why, then, would anyone want to do this?