If you downloaded these files from a third-party site rather than an official store (like Steam or the Microsoft Store), before running any .exe files.
: Use a tool capable of handling RAR archives, such as: 7-Zip (Free and Open Source) WinRAR AgeOfEmpires4.part05.rar
Because modern games like Age of Empires IV have large file sizes (often 30GB to 50GB+), they are frequently split into smaller "parts" (e.g., .part01, .part02, .part03, etc.) to make them easier to download or share. If you downloaded these files from a third-party
: This usually means Part 05 (or another part) was corrupted during download. You will likely need to re-download the specific part mentioned in the error message. You will likely need to re-download the specific
: If the extractor stops and asks for Part 05, ensure the file is named exactly like the others and is located in the same folder. Do not rename the files.
: This specific file contains a middle chunk of the overall data. It cannot be opened or "played" by itself.