Notes:
Perhaps you don't want a new string; you just want to change an old one. For example, rename "Computer" to "Magical Thinking Machine". sims 4 language strings new
The game supports over a dozen languages (English, French, German, Korean, etc.), so each string has multiple translations. When EA/Maxis prepares a new pack, they inject placeholder strings into the game files via a patch. These placeholders are what dataminers hunt for. Notes: Perhaps you don't want a new string;