RAR archive labelled with board number 10211-1, roughly 112 KB, without a device or brand in the name. The number follows Wistron's style, where a five-digit project code and a dash revision identify the PCB. The content type is not stated; given the size and related files, it is likely a boardview or small service file. Extract and inspect it, and compare the number and revision printed on your board before using it to trace circuits or locate components.
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 @schematicslaptop. 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)