Open the .spd in PersonaEditor, right click on the spd name in the top right, and click "view/edit". After that, click on the .dds file you want to view from the list in the middle-ish part of the ...

Open the Program: Launch the executable or run the Python script as described above. Select an Image: Drag and drop an image into the window or use the "Browse" button to select an image from your ...