Be wary of sites that ask you to complete a "survey" or download a separate .txt file to view the password; these are often scams or contain malware.
Did you download this from a or repack group (like FitGirl or ElAmigos)? FIFA18.part03.rar
Check the exact page where you clicked the download link. Passwords are often listed in the post description or in the "Instructions" section of sites like FitGirl Repacks. Be wary of sites that ask you to