: You cannot use part06.rar on its own. To extract the contents (which is usually an ISO disk image of the game), you must have all parts of the set (part01 through the final part) in the same folder.
Below is an informative breakdown of what this file represents, how split archives work, and the risks associated with downloading such files. What is this file? Microsoft_Flight_Simulator-HOODLUM.part06.rar
Downloading files with these naming conventions carries significant risks that users should be aware of: : You cannot use part06