If you are looking for official postal data, it is safer to consult national postal services or verified data providers like Experian rather than downloading unverified .rar files. Download- Code Postal Night Folder 719.rar -228... Here
If you must download for analysis:
(commercial, but structured).
: This indicates a compressed archive file . You would need a utility like WinRAR or 7-Zip to open it and see the contents. Download- Code Postal Night Folder 719.rar -228...