Windows 11 now has built-in support for RAR files, though for older versions or more control, WinRAR or 7-Zip are the industry standards.
From here, you can double-click a specific file to open just that one. 3. Online Viewers (For quick checks)
the .rar file. If you have an archive manager like WinRAR installed, it will open a window showing a list of all internal files, their sizes, and when they were created.
If you just want to peek inside without moving everything to your hard drive: