RAR archive for the Quanta board DA0P5HMB8E0, 2.21 MB, with no laptop model or file contents stated in the name. Quanta builds its board numbers from the DA prefix, the project code P5H, MB for main board and a revision suffix. The archive could hold a BIOS dump, boardview or schematic, so inspect it before use. If it is a firmware image, check that its size matches the flash chip and back up the original first. For a boardview, confirm that the PCB number matches.
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 @laptexdna. 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.
7-ZipWinRARThe Unarchiver (macOS)