ZIP archive of 661 KB for Wistron board 08224-1, with DR1 in the name, a tag that typically marks an early design-stage release of the board files. The laptop brand and model are not stated, so match the number on the PCB to confirm compatibility. At this size the archive may contain a schematic or boardview package, used for following power rails, reading signal paths and locating components and test points. Because an early-stage document can differ from production boards, check component placements against the real board.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.