Early 12.0-branch build of Intel Flash Image Tool, version 12.0.6.1120, in a 5.28 MB RAR archive. FIT is used to decompose and rebuild SPI images, replace or clean the Management Engine region and edit descriptor and strap options. On the bench it helps recover boards with corrupted ME data. Later 12.0 builds may support newer firmware, so match the ME version in your dump. Save a full backup of the original flash with a programmer and check the output image size before writing.
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.