GG.Deals doesn't offer an export function, and Backloggd has it on their public roadmap. In the meantime, you can try importing a text list.
Import from Playnite
Playnite has no built-in export, so we rely on a free community add-on to save everything to a single file.
We match your games by name, so most will link but a few obscure titles might not.
We match your games by name, so most will link but a few obscure titles might not.