Quanta boardview for board DAG7HGMB8B0, revision B, project G7H, with an R1A revision tag also stated in the name. The DA prefix followed by the project code and MB is Quanta's typical numbering for laptop motherboards, so the laptop brand itself is not named here. Inside the 4.18 MB RAR is a layout file that opens in OpenBoardView, FlexBV or similar tools for locating parts, nets and probing points. Match the full board code and revision printed on the PCB before using it to diagnose shorts or missing rails.
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 @BoardSchematic. 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.