If the file is part of a puzzle or mystery (like an ARG), "looking into" it might mean more than just opening it:
If came from an unknown source, use these methods to inspect it safely: look.rar
Tools like HxD allow you to look at the raw binary code of the file. You can search for "plaintext strings" (hidden messages) that might be tucked away in the file header or footer. 3. Safety Precautions If the file is part of a puzzle
If you want to see what is inside without fully unpacking it (which is safer if you're suspicious of the file): look.rar
Right-click the file, select 7-Zip , and then Open archive . This provides a "look inside" without moving files to your hard drive.