RAR archive containing Intel Flash Image Tool build 9.5.15.1730 from the ME 9.5 firmware toolset. FIT is the program used to assemble or rework a full SPI image, combining descriptor, ME, GbE and BIOS regions, and to change platform straps stored in the descriptor. In laptop repair it serves mainly to rebuild a corrupted or locked Management Engine region. Pick the FIT release that corresponds to the ME version found in the dump, and always back up the chip before programming.
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.