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.
Do you have more context on where this file or what it's supposed to contain ?
A highly-rated free and open-source alternative that supports almost all archive formats. The Unarchiver: A popular, simple tool for macOS users . Safety Precautions
If you are looking to understand or interact with this file, here is what you need to know: What is a .rar File?
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.
Do you have more context on where this file or what it's supposed to contain ?
A highly-rated free and open-source alternative that supports almost all archive formats. The Unarchiver: A popular, simple tool for macOS users . Safety Precautions
If you are looking to understand or interact with this file, here is what you need to know: What is a .rar File?