You must have of the archive (e.g., part1, part2, and part3). Use a program like WinRAR or 7-Zip to extract them.
In multi-part gameplay series often associated with these file names, "Part 3" typically focuses on the expansion phase of a bus company: CityBusManager.part3.rar
: Building and improving bus depots, washing stations, and service centers to keep the fleet running efficiently. You must have of the archive (e