If you must inspect a file for professional reasons, do so in a "Sandbox" environment (a virtual machine isolated from your main computer). Conclusion
A script that encrypts your personal files and demands payment for the decryption key. JuHlandDMgglssga01 rar
Understanding the Risks of Unknown Archive Files: The Case of "JuHlandDMgglssga01.rar" If you must inspect a file for professional
If you have encountered this specific file or one like it, follow these safety protocols: delete it immediately.
If the file arrived via an unsolicited email or an untrusted source, delete it immediately.