1. Text: it is the main part of the case file, including all documents, records, letters, evidence and other materials related to the case or affairs.
2. Notes: comments, notes or explanations made by lawyers, judges or other relevant personnel on documents or cases.
3. Cover: the outermost layer of the case file, including the basic information of the case or affairs, such as the name of the case, the name of the party, the name of the lawyer, the name of the court, etc.
4. Directory: It is the file directory inside the file, which lists the page numbers and titles of all files for easy searching.
5. Index: the index of all files in the file, arranged in alphabetical order, including keywords such as file name, party name and event date.