You need to convert to virtual machine to an OVF package first
Step-by-step instructions on how to convert a backup archive (*.tib) to virtual hard disk (*.vhd) and import it to Hyper-V
You can import an archive to a managed vault only through command line
You can use a special Acronis utility to import a .vhd file to Citrix XenServer
How to import ova.xml to Citrix XenServer
The XML file that you are trying to import is not a backup plan or it is corrupted
Check the license key and connection to the remote Acronis License Server
How to export and import local and centralized backup tasks
This article describes how to import a converted virtual machine into ESX Host
Follow the step below if you need to link an existing Acronis Cyber Cloud tenant to a client in your WHMCS system.
1. Disable automatic provisioning for Acronis Cyber Cloud service. In WHMCS, go to Setup > Product/Services.
2. Open the Acronis product and switch to the Module Settings tab.
3. Make sure that the Do not automatically setup this product option is selected.