Raw 16 MB BIN backup labelled t460, most likely read from a Lenovo ThinkPad T460, although the name states nothing more, such as board number or BIOS version. As a backup it may hold the original machine's serial, UUID and MAC data, plus any password or Computrace settings stored in flash. Technicians use such images as references or to restore a board's SPI chip with a programmer. Verify the model and board, keep your own dump of the target chip, and make sure the target flash really is 16 MB.
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 @bioshub. 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 →