Boardview file in .brd format, 279 KB, whose name carries only the number 10272 with no brand, model or revision given. Five-digit numbers like this often belong to laptop mainboard projects, but the name alone does not confirm the maker, so open it in a boardview viewer such as OpenBoardView or FlexBV and compare part placement and silkscreen with your board first. Once matched, it helps locate components, test points and nets when tracing power rails or hunting a short to ground.
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 @one5technology. 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.