BIOS release 1.20 for the B75M-DGS board, dated 12.25.2012 and labelled evropa, likely a European build. The ZIP is only 3.66 KB, which is much smaller than any full SPI image, so its contents may be a readme, a loader script or an incomplete file; inspect it before relying on it. For a real recovery, a full dump matching the chip size is required. Confirm the board model printed on the PCB and save the existing flash contents with a programmer before writing anything.
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 @biosdumpcomputer. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →