You must have WIP3.part1.rar and any subsequent parts (part3, etc.) in the same folder.
Use WinRAR , 7-Zip , or The Unarchiver (Mac). WIP3.part2.rar
If you found this on a forum, cloud drive, or asset site, it likely falls into one of these categories: You must have WIP3
A collection of high-resolution textures, 3D models (like Blender or Maya files), or video project files. To help you understand what you are looking
To help you understand what you are looking at, here are the most likely scenarios for this type of file: 1. What the Filename Likely Means
The filename is a generic name for the second part of a multi-volume compressed archive. Because "WIP" is a common shorthand for "Work In Progress," this specific file could contain almost anything depending on where you found it.
Files named "WIP" or "Beta" shared on public forums or unofficial sites can sometimes carry risks. If you didn't download this from a source you trust, it is a good idea to scan the folder with antivirus software (like Windows Defender or Malwarebytes) once it is extracted.