The style that should be used in filling out a job or college application is formal and impersonal because it’s an application .
When writing a letter to be sent to a potential employer, you should be really polite. For instance, a polite greeting which is the most common salutation is "Dear Mr./Ms." followed by the person's last name. Furthermore, you should sign off your email with a polite close, such as "Best" or "Sincerely," followed by your name.