Intel FIT 11.0.0.1166, one of the earliest 11.x Flash Image Tool builds in this set, provided as a 4.85 MB RAR. Technicians load a dump read from the board's SPI flash into FIT, check the region layout, drop in a clean ME firmware and let the tool build a corrected image for writing with a programmer. It is a Windows application from Intel's ME System Tools. Newer 11.0 builds may handle later ME firmware better, so match versions carefully and keep the original read safe before flashing.
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 @mfittool. 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.