The format of a formal letter usually included the following parts: Beginning with 1: Including the recipient's name, address, phone number or email address, and the signature or date of the writer. 2. Name: According to the identity and relationship of the recipient, use an appropriate name to address the recipient, such as "Dear Mr./Ms. XXX" or "Dear XXX". 3. Greetings: Use short greetings to express the writer's greetings and respect, such as "Hello","Good morning","Good night", etc. Body: The body should include the writer's purpose, content, views, and expectations. It should be expressed in respectful and polite language, avoiding vulgar, offensive, or inappropriate language. 5. Ending: It includes words such as thanks, blessings, greetings, etc. to express gratitude, as well as wishes to the recipient such as "I wish you good health","I wish you success in your work", etc. 6. Inscription: Including the writer's name, address, phone number or email address, as well as the writer's signature or date. 7. attachments: If you need to add attachments such as photos, documents, etc., you should mark them in parenthesis after the text and list them separately. It was important to note that the format of a formal letter should be standardized, neat, and clear. It should avoid using sloppy and chaotic handwriting and format. At the same time, the wording and tone of the letter should also be adjusted according to different occasions and relationships.