Display the list of virtual machines within the target you want to check. Example: If you want to check all virtual machines under a VC, select the VC, choose the "VMs" tab on the right, and display the list of virtual machines.
Click "Manage Columns" in the bottom left of the VMs tab, select UUID, and confirm that the UUID column has been added to the list.
(Option) You can export the data as a CSV file using the "Export" option next to "Manage Columns".