These multi-part files are common on third-party hosting sites. Ensure you are using a trusted source to avoid malware.
When all parts are extracted, the folder typically contains:
Scripts for the "GobbleGum" mechanics added to these classic maps.
Once all parts are downloaded, right-click part01 and select "Extract Here" (using WinRAR or 7-Zip); it will automatically pull data from the other parts. 💡 To help you further, let me know: Are you having trouble extracting the files?