It is important to distinguish between official Chessable features and third-party "collections."

These are not official Chessable commercial courses, but rather user-uploaded PGNs that gained "Top" status due to community endorsement and sheer volume of lines.

: Official Chessable policy states that content is accessed strictly through their platform. While you can export your own created courses , you cannot officially export PGNs for books you have purchased. How to Access PGNs Legally