never used => they still have the white sticky sheet over them to stop them being scratched in transit / during fitting.
Sorry, my windows had film with the brand name on them, as most polycarb does - it looks like those are opaque, but if they haven't been used then maybe it is film.
that set is missing the drivers window for some bizarre reason
It's not at all bizarre. Having a glass driver side front window means you can wind it down. Useful for stuff like 'ring tickets/Péage and other operations where winding down the window is useful.