An archive of repair files for Dell hardware (board 13229-1). Shared as “DELL 3340 (13229-1 A09).zip” — a .zip file, 1.04 MB.
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 @one5technology. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip