Many .rar files from forums are password-protected. Look at the site where you found the link; the password is often the site's URL.
Is this for a specific (like an accounting or HR tool)? Do you need help fixing an error related to this file name? ШЄШЩ…ЩЉЩ„ date400 rar
Use a tool like VirusTotal to check the file for malware. ШЄШЩ…ЩЉЩ„ date400 rar
To help you find the right "paper" or file, could you clarify: ШЄШЩ…ЩЉЩ„ date400 rar
You will need a program to extract the contents.