Which is this for (e.g., Rise of Flight , DCS , MSFS )?

: Search the file sections for "SPAD XIII" to find community-created mods and skins, which often come in zip files.

: A major forum for prop-sim enthusiasts, featuring a massive file library for older simulation titles.

It seems you are looking for a file to download, likely a model, skin, or add-on for a flight simulator (like Rise of Flight, DCS, or Microsoft Flight Simulator) regarding the aircraft. Here are the best ways to find the SPADXIII zip file: