: Right-click the first part and choose "Extract Here." This will combine all parts into a single .scs or .zip file.
If this is indeed a mod for ETS2 or ATS , the process is usually as follows: : Get all three segments of the RAR file.
: Ensure you are downloading from a reputable modding community or official forum. Avoid clicking on misleading "Download" buttons on file-hosting sites that may lead to unwanted software.