Boardview in .brd format for the Quanta mainboard DA0P1BMB6D0, revision D, 288 KB in size. Board numbers starting with DA0 follow Quanta's numbering, and the brand of the finished laptop is not given in the name. BRD files open in OpenBoardView, FlexBV and similar viewers, where you can look up part locations, follow nets and find test points on both sides of the board. Pair it with the matching schematic, and confirm the revision letter on the PCB before relying on placement data.
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 @IT_SERVICE_WORLD. Enginerys does not host this file.
How to open a .brd file
The most common boardview extension. Several unrelated formats share it, which is why one viewer opens a .brd and another refuses it.