To view the contents of the file, you will need extraction software. Popular options include:
A RAR file is a compressed archive created with WinRAR. It allows multiple files to be bundled together into a single, smaller file for easier storage or transfer. How to Open It
Only open the file if you trust the person or website you downloaded it from. Randomly named archives from unknown sources are a common way to spread ransomware or spyware.
Because "22488.rar" is not a recognized public document or common software package, you should exercise caution before opening it: