Ensure the codes match official standards. For example, U.S. ZIP codes are 5 digits, while French "Code Postals" are also 5 digits starting with the department number.
While "Code Postal night folder 200.rar" does not appear to be a standard academic or industrial dataset recognized in major repositories , its name suggests it is a compressed archive containing , likely related to postal codes (ZIP/PIN codes) and possibly "night" operations (like overnight shipping or low-light imagery). Code Postal night folder 200.rar