: If you don't want to install software, tools like ezyZip or Extract.me allow you to upload and view the archive's contents in your browser. Forensic & Technical Analysis
If this is for a security or technical write-up, you may need to dig deeper:
: Sometimes archives are hidden inside other files (like images). You can use a command like 7z l gallery.7z in PowerShell or a terminal to list all files and their attributes without extraction. Summary Table: Quick View Recommended Tool
You can view the contents of the archive without fully extracting it: