With this improvement, the Data Migration Center allows users to export and import Object Entries using CSV files. Not all field types are supported but many of the most used ones are:
Supported field types: dateandtime, date, decimal, integer, longint, longtext, precissiondecimal, richtext, text and picklist.
In order to help users, only supported fields are available for exporting at the UI. As new types are allowed, they will appear available in the UI.