Raw 8 MB ROM image whose name gives only the capacity and the tag A24, which may be a version marker. No laptop model or board number is stated, so its origin must be confirmed by other means. A binary of this size suits an 8 MB (64 Mbit) SPI flash chip and is written with a programmer such as a CH341A. Compare it with a dump of the original chip before use, keep that backup, and flash it only once you are sure it belongs to the same board.
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 @CLRINDORE. Enginerys does not host this file.
How to open a .rom file
A BIOS image as shipped by the vendor (commonly AMI) — often the BIOS region only, without descriptor or ME.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →