You can include a snapshot of data with your saved model. This documentation page provides an overview of how to share your development database: https://docs.mendix.com/howto7/collaboration-requirements-management/sharing-the-development-database
Yes, you are able to share your test database entries with your fellow teammates. This is what’s called a data snapshot. You can read more about it here
Essentially though, when you’re in studio pro, you can go to project → more versioning → Add snapshot of data.
You will have to commit any changes you’ve made. Once you do this, if you look in your project directory, there will be a data-snapshot.zip file. You can send this to your colleagues and they will be able to import the data snapshot into their project.