Wulnot-mw.part4.rar -

"part4" means this is the fourth segment. It is completely useless on its own. 2. How to Use/Extract the File

Use software like WinRAR (standard), 7-Zip (free), or The Unarchiver (Mac). WULNOT-MW.part4.rar

Ensure all .partX.rar files are in the same folder and named correctly. "part4" means this is the fourth segment