The overview is displayed when the tree view or column view or thumbnails are active (see Tree View or Column View or Thumbnails, respectively).

The display of the field values of the selected file's version (see Choose view) adapts itself to the file type. With images, for example, their height and width, with documents the beginning of their main content, among other things, is displayed.

Here you can switch to the details view using the menu or the toolbar.

Details view icon in the toolbar