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.

1

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

2

Click Import.

3

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

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