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 saved as an xml file located on a file system accessible from the vSphere Web Client.


  1. In the vSphere Web Client inventory, select Rules and Profiles > Customization Specification Manager and click VM Customization Specifications.
  2. Click the Import specification from a file icon.
  3. From the Open dialog, browse to the .xml to import and click Open.


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