Stf.part3.rar -

: Use a tool like WinRAR or 7-Zip to extract them.

: The .part3.rar extension indicates that this is the third segment of a larger file that has been split into multiple pieces for easier sharing or storage. stf.part3.rar

Could you tell me or what it's supposed to contain? That would help me give you more specific details! : Use a tool like WinRAR or 7-Zip to extract them