Enveloppe extraordinaire
You spell it envelope.
This is how you spell "seal" in french: seal
Envelopes is correct.
envelope
seal
Didn't the English word 'envelope' come from French?
El sobre.
The corrected spelling (a typo?) is "envelope."
outstanding
It's a french word. (1705)
"Extrodinary" isn't actually a word. Although, the word "extraordinary" (if that's what you meant) basically means exceptional or unusual.
"How do you spell it in French?" is "Comment ça s'écrit en français?"