What do you mean the file has not been decrypted?

It means that the document has not passed the confidentiality period.

Unpublished means not released from the confidentiality period. According to the classification (secret level), the duration of decryption and the security measures during decryption are also different.

Generally speaking, archives refer to various forms of original records with preservation value directly formed by people in various social activities. There are many forms of archives, some of which can be extracted and viewed at will, some of which must be kept secret, and some of which are top secret documents.