"FC2-PPV" refers to the platform/content type; "1261799" is the unique content ID; and "part6" indicates this is the sixth segment of the overall archive.
If you extract the RAR and find an .exe , .bat , or .scr file instead of a video format (like .mp4 or .mkv ), do not run it . This is a common tactic for spreading malware. FC2-PPV-1261799-1.part6.rar
You cannot open a "part6" file in isolation. To successfully access the content inside, you must follow these steps: "FC2-PPV" refers to the platform/content type; "1261799" is