It looks like you've shared a fragment that seems to be a filename ( thmyl- mny farwq wkhald ywsf jwdt HD.mp4 ) followed by what appears to be a file size or offset ( -525.73... ), and then the note "useful text."
Let me know more, and I’ll give you a precise, useful answer. thmyl- mny farwq wkhald ywsf jwdt HD.mp4 -525.73...