Open a game, navigate to the Analysis Board , and click the FEN & PGN tab at the bottom to download.
Open a game, click the Share icon in the Analysis tab, select the PGN tab, and click 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. Open a game, navigate to the Analysis Board
If you are looking to download chess games, is the standard format for recording moves and metadata. How to Download: Open a game
If "ampg" refers to guitar amplifiers, you might be looking for files used with the Neural Amp Modeler . These are digital "clones" of real-world guitar amps and pedals. How to Create / Edit PGN files (CHESS)