Archive for a main board identified as I610M4 at version V2.01, likely a generic or OEM desktop board built on an Intel H61-class design, although the chipset is not stated in the name. At 10.5 MB it may contain a BIOS image, a schematic or both, so open the RAR and check what is inside. A firmware image can be written to the SPI flash with a programmer, while a schematic helps trace power rails and signals. Make sure the PCB silkscreen shows the same model and revision before relying on the files.
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 @biositechyangiyer. 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.