Could you clarify or what hardware/software you are trying to update? Knowing the context will help me provide specific instructions.

If the file contains folders like system , data , or boot , it is almost certainly a device firmware. Search for the device model name + "V-30092022" to find specific flashing instructions.

Private server files or "cracks" for games that were updated on that specific date.

Do not use "Extract Here" to avoid cluttering your current directory.

Upload the .rar file to VirusTotal . It will scan the file against over 70 different antivirus engines to check for trojans or miners.

To see what is inside without automatically running anything: