 X-files unit

In the fictional universe of the television series "The X-Files", an "X-File" is a case that has been deemed unsolvable or given minimal-priority status by the Federal Bureau of Investigation; these files transferred to the X-Files unit.The files constitute an unassigned project (outside the Bureau mainstream) that is more or less concerned with unexplained phenomena, fringe pseudo-scientific theories, and non-credible evidence of paranormal activity.