Small 337 KB RAR archive labelled for the H61M-HVS motherboard with version 1.00 in its name; the contents are not described, so it may hold a BIOS image, a revision document or related files. H61M-HVS is a board model known from ASRock's Intel H61 line, though the name itself does not state the brand. Open the archive and inspect the files before relying on them. If it contains a firmware dump, compare its size against the flash chip and keep a backup of the original chip before any programming attempt.
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.