What is a Defined Table?
An Excel Defined Table is a special object in Excel which adds a lot of new options and functionalities when working with data ranges. With Defined Tables, you can manipulate data more easily than before, adding power and flexibility to your applications.
To create a Defined Table, select the data range, or simply select any cell within the data range, and click the Table button from the Insert tab from Ribbon. The keyboard shortcut key is Ctrl+T to create a Defined Table.