Check the source where you downloaded the file for a SHA-1 or MD5 hash to ensure the file wasn't corrupted during download.
Ensure you have the complete set of files. If one is missing, the extraction will fail. SiMo13.part1.rar
If this is a firmware or map update for a car, ensure the vehicle is connected to a battery charger or the engine is running. A power loss during installation can "brick" the hardware. Do you have the remaining parts of this archive, or Check the source where you downloaded the file
Right-click on Part 1 only and select "Extract Here." The software will automatically pull data from the subsequent parts. 3. Creating Installation Media SiMo13.part1.rar