Replace database in editor with version showing on the dashboard

Good morning, I now have 2 versions of my database collection. The one showing when entering via the editor is from an error caused by an excel import. The version showing in the dashboard - the one before the import - is the one I need. Could anyone offer a way to get this version back to show up in the site editor? Thanks in advance.

The database that shown in the dashboard is your live database and the default view of the database in the editor is just a sand box. it is possible to sync data with both of them.
Check out these articles to learn how it’s done:

Good luck!