Second copy of the H61MLV2 archive, the same 1.53 MB ZIP size and very likely a duplicate download. The name suggests an Intel H61 chipset desktop motherboard but gives no maker, revision or content type. Open it to see whether it carries firmware, drawings or tools. For a BIOS file, compare it with the SPI chip capacity, save the existing chip contents first and flash with a suitable programmer. Check the board silkscreen model before relying on anything inside.
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 @ITHINKHS. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip