RAR archive containing a 16 MB BIOS image tagged GROOT RAV A, presumably a board code name and revision A, though the name gives no laptop brand or model. The 16 MB size points to a 128 Mbit SPI flash chip, and the dump is intended for writing directly to that chip with a programmer such as a CH341A. Confirm the chip capacity on your board matches, since a mismatched image will not fit, and always read and save the original contents twice before erasing and writing this file.
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 →