A boardview (component placement) file (board 10315-1M). Shared as “DV14 HR (10315-1M 4IU15) (BDV).GR” — a .gr file, 284 KB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @alischematics. Enginerys does not host this file.