You can import an existing specification using the Customization Specification Manager, and use the specification to customize the guest operating system of a virtual machine.

Before you begin, you must have at least one customization specification.


In the vSphere Client, select View > Management > Customization Specifications Manager.


Click Import.


From the Open dialog, browse the .xml to import and click Open.

The imported specification is added to the list of customization specifications.