To look into the contents of WALS_Models.rar , you'll first need to extract the compressed files using specialized software like or 7-Zip . Since .rar is a proprietary compression format, most operating systems cannot open it natively. How to Access the Files

For a quick visual guide on how to extract and view these files with common tools, watch this tutorial: How to open a RAR File - WinRAR Video YouTube• May 11, 2021

Select to unpack everything into the current folder, or "Extract to WALS_Models/" to keep things organized in a new folder.

: If the archive contains multi-part models, you can use Windows 3D Builder to virtually "merge" the parts into a single .stl file before slicing.