Yu-Gi-Oh! » Custom Cards

Is there a way to upload all the cards at once? For example, by sending a file containing tables filled with all the data, and having the system automatically sort everything?

I have a list of 2000+ custom/alternative format cards.

No.

No.

Is there a third-party tool that can help upload the list at once?

No.

Is there a third-party tool that can help upload the list at once?

No.