Hi,
Copy the xml file to :
X:\SymantecDLP\Protect\config\templates
"X:\Vontu\Protect\config\templates" for DLP 11.1.2 and below
On Enforce Go to Manage > Policy List > Add Policy > Add a policy from a template >
Now go to the very bottom > select the template from the "Imported Templates" and click on next.
This should work for you. But remember if the plict has EDM\IDM then you need to update the EDM\IDM for the policy befor you could save the policy.
Thanks,