Boardview for the ASUS UL80V mainboard, revision 3.0, packed in a small ZIP archive of about 149 KB. Inside you should find a layout file showing part placement, net names and pin connections for both sides of the board. Technicians open such files in viewers like OpenBoardView, FlexBV or Boardviewer to locate components, follow a power rail to its source, find test points or isolate a shorted capacitor. Confirm the revision printed on the PCB reads 3.0 before trusting the component positions, since layouts can shift between board versions..
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 @cynetitsolution. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.