This page gives you an overview of all your data types that you have chosen to determine the nature of your app and that you structured previously to describe your data exhaustively.
Clicking either on any of the data types’ names in the purple boxes or the table icon, the plus icon or the import icon in the said table, will take you to the screen where you can start inputting the data you have to complete your database. Clicking on any of the tabs with the name of the data type will take you to the data inputting page as well.
You can import that data you have on your local drive if it is stored in a .csv format.