The Open dialog box does not list all the files due to wrong file type.
Cause:
The file type is changed to display only files of a certain type.
Solution:
Switch the file type back to display all types of files.
In the 'Open' dialog box, select 'All Files (*.*)' from the 'Files of type' drop-down list box.
Selecting the file type
NOTE: This procedure assumes that the 'Open' dialog box is displayed on the screen.