This is the 9th segment of a multi-part RAR archive. The "Write-Up" (Technical Overview)
If you are missing other parts (e.g., you only have part09 ), the data inside is encrypted/compressed across the boundaries of the other files. You cannot extract the data from part09 individually; you must locate the remaining archive segments to complete the set. Are you trying to this specific file, or sc25042-RETURNL.part09.rar
This file cannot be used alone. To access the contents, you must have all parts ( part01 through the final part) in the same folder. Opening part01 with a utility like WinRAR or 7-Zip will automatically "stitch" the parts back together to recreate the original file (usually an .iso or a folder). This is the 9th segment of a multi-part RAR archive