Windows executable named mfit.exe, which normally refers to the Intel Flash Image Tool from the Management Engine system tools. Technicians use it to open, edit and rebuild full SPI flash images, including the descriptor, ME and BIOS regions, and to change configuration settings. MFIT versions are tied to specific ME generations, so use the release that matches the platform being serviced. Keep an untouched backup of the original flash dump before building or flashing any modified image.
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 @XpertsBiosSolution. Enginerys does not host this file.