@Anas-Ashraf
The viptela file is a file downloaded from PnP Cisco Smart account under your organization name. Means when you practice the lab you will be using your vBond IP address and your Organization name created under PnP (Plug and Play) Smart account.
When you create your personal Controller name, you will be asking for a number of vEdges and csr1Kv under your vBond controller profile. From there you can download the viptela provisioning File and upload it on vManage (Your lab) to register the devices.
All this explanation is found on Khawar’s second video Day 15 - SD-WAN - 2
You can also take a look at this brief video for more information.
