An archive of repair files for Dell hardware (board 203099-1). Shared as “Dell Vostro 5515 Cyborg 15v AMD A00 203099-1 Without CPU.zip” — a .zip file, 9.78 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 @boardsscanrepo. 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