RAR archive, around 383 KB, named 11205-SA with an added swg tag; no brand, model or content type appears in the label. The number may be a board or project code and SA a variant, while swg cannot be expanded with certainty. Extract it using 7-Zip or WinRAR to find out whether it holds schematics, boardview data or firmware. Before applying anything from it to a repair, cross-check the identifiers against the board silkscreen, and make a full backup of any flash chip before reprogramming it.
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.