Boardview archive for the Huawei MateBook X laptop, compressed as RAR, with no board number or revision stated in the name. A boardview maps component placement, designators and net connections, so a technician can find test points, trace power rails and locate a shorted capacitor quickly. Extract it and open the layout in a viewer such as FlexBV, OpenBoardView or Boardviewer depending on its format. Compare the board markings with the layout before trusting it, since MateBook X generations 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 @vinafix_bios. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.