Full path input: This input will display the current full path, will show each step in the path as a row in the open list. Clicking on a row will make the dialog navigate to that folder.

Up button: will make the dialog navigate to the parent folder.

Directory and file listing

Load file name: The name of the file to load.

Category display: Shows the extensions that are being used to filter the file list.

Load File button: Will try to load the given file name and close.

Cancel button: Will just close the dialog.