Trying to transfer data from one box account to another

Hi Mary, 

Welcome to the Box Community, I'm happy to help!

If you need to move or transfer contents from one Box account to another account, we recommend "Transferring folder ownership".

To transfer folder ownership, the Box account that currently own the content simply need to invite the other account as a 'collaborator' and then promote the that account as the "Owner".

More details can be found in this article of this process: https://support.box.com/hc/en-us/articles/360044196273-Managing-Collaborators#transferfolderowner

Hope this helps! Thanks for reaching out and let us know if you have other questions.

All the best, 

What if the original party wanted to maintain their files and didn't want to lose them? Would transferring folder ownership still be the way to go? Thank you!