Card Kingdom is a buylist/retailer rather than a peer marketplace, so there's no native seller-inventory CSV — but you can still bring a buylist cart over.
Log into your Card Kingdom account.
Open Card KingdomOn Card Kingdom you sell to them via the buylist — add the cards you want to move into a buylist cart. They generate the order from that cart.
Copy your buylist contents into a CSV (one row per card, with quantity and condition columns) and save it locally. We'll match it to your Sleeve collection after you sign up.
Heads up: Card Kingdom doesn't expose a seller-inventory CSV export. If you have a buylist cart you built on their site, you can save it as CSV and upload it here. If you actually run a BinderPOS-powered store or sell on Star City Games buylist, those have true CSV exports and are a closer match.
Drag your CSV here
or
CSV only · up to 10MB