File: Com3d2_en.7z.012 ... Instant

If one part didn't download completely, you will get an error. You may need to redownload the specific part mentioned in the error message. Missing Part: All 12+ parts must be present.

If you are having trouble with the extraction, please tell me: What are you getting? Are you using 7-Zip ? If it's about the game itself, How to Easily Open 7z Files on Windows File: COM3D2_EN.7z.012 ...

Ensure you have downloaded COM3D2_EN.7z.001 through COM3D2_EN.7z.012 (or whatever the final number is) and placed them together in a single folder. If one part didn't download completely, you will

Select "7-Zip" -> "Extract Here" or "Extract to [Folder Name]". If one part didn't download completely