Move the Sirap.NatPort.1.var file into your VaM installation's AddonPackages folder.
If it is a full scene, use the menu and search for "NatPort". Sirap.NatPort.1.var
Sirap , a prominent VaM artist known for lightweight character bases. Move the Sirap
I make custom Virt-A-Mate characters and look-alikes. All my looks are optimized to be as light-weight as possible on your system, How to open a VAR file - Patreon Sirap.NatPort.1.var
While the exact visual of "NatPort" is hosted on private creator pages like Sirap's Patreon , the naming convention suggests a character look-alike or a specific scene featuring a model named "Nat".