: If this is a "Proof of Run," the file might contain the video file and a .lss (Livesplit) file.
: The naming convention is also common for exported security or dashcam footage. You may need a specific codec or player provided by the camera manufacturer. F_3(04m11s).rar
: Run the file through VirusTotal before opening any executable ( .exe ) files inside. : If this is a "Proof of Run,"