Untouched BIOS backup from an X55LD motherboard revision 2.0, likely ASUS, saved as an 8.00 MB binary image. The size matches a 64 Mbit SPI flash chip, so it can be programmed directly with a CH341A or similar tool. Use it only on a board marked rev 2.0, as other revisions of the same model may need different firmware. Because it is a dump from a real machine, back up your own chip first to keep its serial and system data.
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 →