ASUS G513R / G513RM boardview for motherboard 6050A3348801-MB-A01, a board number in the Inventec pattern. A boardview shows each part's location, designator and connected nets, letting a technician jump from a faulty rail to the capacitors or MOSFETs on it and find test points quickly. Extract the zip and open the file in a viewer such as OpenBoardView or FlexBV. Ensure the revision on the PCB matches, since layouts can change between board revisions and part placements may differ.
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 @desktopbios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.