NV champagne info

1

So I was gifted two bottles of NV champagne, Nicolas Feuillatte Champagne Premier Cru Brut and a Veuve Clicquot Brut. CT suggests the NF was a single offering and is way beyond its window, but how would I confirm this? Is there a way to identify batch info on the Veuve?

Should I be excited to try these or prepare for the inevitable drain pour?

Exhibits A and B