BIOS package with the identifier G1DLRO-B, version C 3.0, packed in a 40.3 MB rar. The name gives no brand or model, so identify the target from the identifier and your board's labels before use. An archive this large probably contains an update package or several images rather than one SPI dump. Inspect the contents first, compare any raw image size with the flash chip capacity, and always dump the original chip with a programmer before writing, so you can restore the board if the image proves wrong.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →