Intel FIT 13.50.15.1475, a 6.46 MB RAR. The 13.50 branch is a separate firmware line from 13.0 and 13.30, so this Flash Image Tool should be matched with ME firmware carrying a 13.50 version. FIT opens a full SPI dump, displays descriptor and region data, lets you replace or clean the ME and rebuilds the image for writing with a programmer. It is useful for recovering boards with ME corruption. Keep the original chip read safe and check the output size before flashing.
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.
7-ZipWinRARThe Unarchiver (macOS)