What are the best techniques for using putty wood filler to repair damaged wood surfaces effectively?

To effectively repair damaged wood surfaces using putty wood filler, follow these techniques:

1. Clean the damaged area thoroughly to remove dirt and debris.
2. Apply the putty wood filler generously to fill in the damaged area.
3. Smooth out the filler with a putty knife or sandpaper to ensure a level surface.
4. Allow the filler to dry completely before sanding and painting or staining the repaired area.
5. Repeat the process if necessary for a seamless finish.