You can create your own PGN files using software like ChessBase or Fritz by manually entering moves and saving the result. 2. Neural Amp Modeler (NAM) Files
If you are looking to download chess games, is the standard format for recording moves and metadata. How to Download: Download ampg pgn
You can add PGN files directly from the web by pasting a URL into the "add PGN from the web" database menu. You can create your own PGN files using