This is the 3rd part of a multi-part RAR set. You cannot extract the contents of this file alone; you must have all parts (part01, part02, etc.) in the same folder.
Files with randomized alphanumeric names from unknown sources carry a high risk of containing malware or unwanted software. Always scan the extracted contents with updated antivirus software before running any executables (.exe). sc23423-GK.part03.rar
Based on the "sc" prefix and the "GK" tag, this file is most likely part of a split archive for: This is the 3rd part of a multi-part RAR set