A RAR (Roshal Archive) is a compressed file format developed by RARLAB . It is similar to a .zip file but often offers better compression and advanced features like password protection and error recovery. To view the contents of 23563.rar , you typically need specialized software like WinRAR or 7-Zip .
Before you right-click and "Extract Here," follow these safety protocols: Why do people still use RAR in 2017? - NESDev Forum 23563 rar
Blog Post Idea: "The Mystery of 23563.rar: Is It Safe to Open?" A RAR (Roshal Archive) is a compressed file