Past time to replace

I unscrewed two screws on top of the microwave, slid the part (which opens when the microwave is in use) to the left and put it aside. The old filter is then easily picked up and removed. I placed the new filter in the same spot. I repositioned the removed part in place, lining up the little tabs, slid it to the right, which automatically lined up for replacement of the screws. These directions were included with the new filter and it was very easy to follow. I can't believe anyone would pay someone else to do this simple task! I am a 67 year old female.