Lumina Supplemental

Lumina Supplemental is an additional library that provides additional data that the game's data sheets do not provide.

While this is not an exhaustive list(as more gets added all the time), it provides

Airship/Submarine Unlocks
Airship/Submarine Voyage Items
Dungeon Drops
Dungeon Boss Drops
Dungeon Chest Items
Extra Event NPC Locations
Extra Event NPC Shops
Item Patch Data
Supplemental Item Data(Desynth,Reduction,Loot,Gardening,Coffer Contents)
Mob Drop Data(This is user sourced, if you want to help out please check out Allagan Tool's mob tracker)
Mob Spawn Data(As above)
Retainer Venture Items
Extra Shop Names
SQ Paid Shop Items

To load a specific CSV (Dungeon Bosses as an example):

try
{
    var lines = CsvLoader.LoadResource<DungeonBoss>(CsvLoader.DungeonBossResourceName, out var failedLines, GameData, GameData.Options.DefaultExcelLanguage);
    if (failedLines.Count != 0)
    {
        foreach (var failedLine in failedLines)
        {
            PluginLog.Error("Failed to load line from " + title + ": " + failedLine);
        }
    }
    return lines;
}
catch (Exception e)
{
    PluginLog.Error("Failed to load " + title);
    PluginLog.Error(e.Message);
}
return new List<T>();

Feel free to submit a PR if any of the data is wrong or you have additional data that could be added.

Critical-Impact/LuminaSupplemental

Lumina Supplemental