Dell executable for the Alienware 16X Aurora, model code AC16251, version 2.7.0, most likely a BIOS update package run from Windows. Such updaters normally check the platform before flashing, and some can also extract the raw image for external programming. Keep the laptop on AC power with a charged battery during the update. If a board needs SPI recovery, an image extracted from this package can serve, but back up the existing chip contents first.
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 @iasviptools. Enginerys does not host this file.