A firmware dump for the Dell Latitude E6420, where 64 in the name most likely refers to a 64 Mbit chip, matching the 8 MB size. The file has no extension and the name gives no version or board number. It is a raw full-chip image for writing with an SPI programmer on boards with a corrupted BIOS. Some E-series boards carry more than one flash chip, so confirm which chip this image belongs to, compare its capacity, and back up the original before writing.
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 @biosfilebins. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →