Version 15.0.35.1879 extracted production firmware, Consumer SKU, for an LP chipset in B stepping. The suffix 900F6C05 is probably a checksum or identifier separating it from other copies of the same version. At 2.98 MB it is a region-level file. The name gives no device. Typical use is restoring a damaged ME/CSME region before reprogramming the SPI flash. Compare it against the original region in your dump, and never write without first saving and verifying a full backup of the chip.
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 @sm_intel_repository. 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 →