Heading: Sender's Information
Sender's information includes your name, address, phone number, and email address. It should be placed at the top of the letter.

Heading: Date
Include the date on which the letter is being written. It should be placed below the sender's information.

Heading: Receiver's Information
Receiver's information includes the recipient's name, title, company name, and address. It should be placed below the date.

Heading: Salutation
Start the letter with a formal salutation such as "Dear Mr./Ms. [Recipient's Last Name]".

Heading: Body of the Letter
The body of the letter should be concise and to the point. It should include the purpose of writing the letter, any necessary details, and a closing statement.

Heading: Closing
End the letter with a formal closing such as "Sincerely" or "Yours faithfully", followed by your signature and printed name.

Key Pointers:
- Use a formal tone throughout the letter.
- Keep the letter brief and focused on the purpose of writing.
- Proofread the letter for spelling and grammar errors before sending it.
- Use an appropriate font and formatting for a professional appearance.
- Address the recipient with respect and courtesy.
By following these guidelines and structuring your formal letter appropriately, you can effectively communicate your message in a professional manner.