Intel Flash Image Tool build 14.0.47.1500, delivered as a ZIP of about 7.9 MB. FIT is the configuration utility in the CSME tools for creating full SPI flash images, letting you inspect the descriptor, insert an ME firmware region and output a programmable binary. It is a common way to fix boards with damaged Management Engine data. Use it with ME 14.0 based platforms, make a backup of the existing chip contents first, and verify the image size before writing with an external programmer.
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 .zip file
Compressed archive that every operating system opens without extra software.