To Open an Existing Script File

Do one of the following:

In the Save Multiple Images dialog, click the Open Script icon.

or
Select File > Open.

The Open Script File dialog opens.
Use controls in the Open Script File dialog to select the drive, directory and filename.
These controls are similar to those in the Open dialog.
Click the Open button.
The dialog closes. The name of the script file appears in the title bar of the Save Multiple Images dialog. Entries for the selected script appear in its list box.