BIOS image labelled E6440A13 at 4 MB, most likely version A13 for the Dell Latitude E6440, although the name states only the code. Units of this type often carry two SPI chips, which is why the image is split into 4 MB and 8 MB parts. This 4 MB file belongs on the smaller chip. Check the chip capacity with your programmer first, because a size mismatch will not write correctly. Read and save the original contents 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 @BiosSupport2006. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →