Executable package of MFIT version 19, the Intel Flash Image Tool that ships with the Intel CSME System Tools. Technicians use it to open a full SPI dump, inspect or rebuild the flash descriptor and Management Engine region, and generate a clean image when a board suffers ME corruption or boot loops. The 15.6 MB file should be used with the matching ME firmware generation, since version 19 targets newer Intel platforms. Always keep the original dump and run the tool on a copy of the image, not on the only backup.
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.