公開 こうかい文種 ぶんしゅ べつじゃないです
kō kaibunshubetsujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 公開文種別

1. It's not a public document type.; It's not a publicly disclosed type.

Negative
Polite
Casual Register
Computing