Small 149 KB RAR archive for the ASUS F1A75-I, the mini-ITX member of the F1A75 range. The file name states only the model, so the exact contents, most likely a firmware image, have to be checked after extraction with 7-Zip or WinRAR. A dump like this is usually written to the board's SPI flash with an external programmer when the board no longer posts. Read and keep the original chip data first, and confirm that the board marking is F1A75-I before relying on the file.
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 @boardview. 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)