Four megabyte binary with the uninformative name CW, giving no hint of brand, model or board number. Its size matches a 32 Mbit SPI flash chip commonly used for laptop and desktop BIOS. Without identification, the file should only be used if its origin can be confirmed, for example by inspecting strings inside with a hex editor for a model or BIOS version. Always back up the current chip before programming, and verify the write afterwards.
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 @biosarchive. 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 →