suggests this refers to a video file. If this is a specific video "hit" or reference from a niche community (such as a specific ARG, horror series, or retro internet subculture), the exact "guide" or meaning is not documented in mainstream sources.
(e.g., Are you trying to trigger a cutscene, find a hidden file, or bypass a puzzle?) 10-million-passwords.txt - Computer Science Meatholes - Trinity.mpeg hit