RAR archive for the ASUS S200E, roughly 3.52 MB, carrying no further detail about revision or version in its name. As a BIOS and firmware item it likely holds a flash image, perhaps alongside notes; extract it with WinRAR or 7-Zip to check. Compare the board revision printed on the PCB with the dump details, back up the existing SPI chip using a programmer, and make sure the extracted image matches the flash chip capacity, otherwise the file will not fit or boot.
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 →