Named 80EPF02 and 145 KB in size, this PDF is catalogued as a schematic but the code is a rectifier diode part number in International Rectifier format, so the content is most likely a datasheet. No laptop, board or brand appears in the name. Use it to read package outline, pinout and forward and reverse limits while testing or sourcing a part. An S-suffix variant sheet is also present, so check whether your component carries any suffix before taking dimensions from this one.
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 @cyberlanelectonik. 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.