Tiny archive of only 960 bytes referencing G3420 and the ST24C16, a 16 Kbit I2C EEPROM. The name gives no brand or board, and G3420 could be a model or CPU designation, so treat the target device as unconfirmed. A dump this small is a serial EEPROM image rather than a BIOS, of the kind used in monitors, TVs or for configuration data. Read the existing 24C16 with a programmer before writing, and make sure the image is the 2 KB size this chip holds.
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 @biositechyangiyer. 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.
7-ZipWinRARThe Unarchiver (macOS)