RAR archive of roughly 427 KB named H0222-2, one of a series sharing the H0222 code. No brand, device or file type is given in the label, and the suffix 2 may be a revision or part number rather than anything descriptive. Extract it to determine whether it contains documentation, a boardview or a firmware dump. As with any unverified repair file, confirm the identifiers against the hardware, and if it holds a flash image, save the existing chip contents before writing and check the image size against the chip capacity.
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.