RAR archive for the EM_IC819_200B board at revision 2.0, about 18.4 MB in size. The name gives only the board code and revision, so the exact contents, whether BIOS images, EC firmware or documentation, need to be checked after extraction with 7-Zip or WinRAR. Packs of this kind are typically used when restoring a dead or non-booting laptop by reprogramming its SPI flash. Match the revision printed on the PCB, and always dump and keep the original chip data before flashing anything new.
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.