RAR archive that by its naming appears to contain Gigabyte BIOS version F7c for the GA-F2A55M-DS2 board, the trailing letter suggesting a beta or minor update. The 3.20 MB archive likely holds the ROM and perhaps a flash tool. It can be applied with Q-Flash or, for a dead board, written straight to the SPI chip with a programmer. Back up the original chip, including any DualBIOS chips, and check the image matches the flash 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 @vinafix_bios. 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.
7-ZipWinRARThe Unarchiver (macOS)