In my 97, drop the pan and then you have to remove two bolt to remove filter(strainer) install new and put pan back and refill with DEX-III.
I just drain and refill every 15,000 and next 15,000 mechanic drop pan remove filter ,install new filter and refill.
Car has 349,000 and i am waiting to finish 400,000 by end of this year with the original transmission.
Hope that helps.