If the ceiling is too high for you to reach, set the ladder underneath and climb it to remove the tiles.
Press on one edge of the tile to force it up.
Place one hand on the center of the tile and push straight up. The tile should pop out of its frame.
Lift the tile up so that it clears the framing. Turn the tile so that it is on an angle and then lower it down through the opening.
Remove all of the ceiling tiles from the framing.
Using wire cutters, cut the support wires that are connected to the framing.
Find the staples or screws that were used to secure the wires to the floor joists. Pull out the staples with the pliers. Remove the screws with the power drill.
Remove the screws that were used to secure the wall track, if applicable.