Tradingview.txt -

: Symbols should be comma-separated or listed on new lines.

To save your current TradingView watchlist as a text file for external use: Open your watchlist and click the button. tradingview.txt

While the .txt extension is tied to watchlists, TradingView uses other text-based features for different purposes: Welcome to Pine Script® v6 - TradingView : Symbols should be comma-separated or listed on new lines