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.
: 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. AgeOfEmpires4.part05.rar
: This specific file contains a middle chunk of the overall data. It cannot be opened or "played" by itself. If you downloaded these files from a third-party
: Use a tool capable of handling RAR archives, such as: 7-Zip (Free and Open Source) WinRAR AgeOfEmpires4.part05.rar