Schematic in PDF for the Samsung SM-G930F, the international Galaxy S7, 3.71 MB. The file name gives no board revision. A technician would use it to follow PMIC rails, trace the charging and wireless charging paths, check display, camera and sensor connectors and pinpoint shorted capacitors. Any PDF viewer opens it, and searching nets saves time. G930 variants for other regions use different chipsets and boards, so verify you have the F model and that the PCB revision matches the title block.
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 @tamirat_moobile. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.