Hi ljb,
Pull the plug wires and crank the engine a few times while the drain plug is out, then let it sit and drain a little longer. Most oil filters have an anti-drain back valve made into them, so they are difficult to get emptied.
Next option would be to fashion a trough drain out of cardboard, then use a hammer and nail to punch a hole in the lowest area of the filter to drain it out.
Form A funnel is also an option:
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