RAR archive holding Intel FIT 7.0.4.1197, the Flash Image Tool from the ME 7 generation associated with 6-series chipset platforms. With this utility a technician can open a complete SPI image, view region layout and descriptor straps, and rebuild the Management Engine region in a clean state. The finished image is then written with an external programmer. Make sure the firmware in the dump belongs to the ME 7 branch, confirm the image size fits the chip, and back up the original 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.