I have already removed the callibers&the large nut on the spindle.I then tried tapping on
The rotor w/hammer but doesn't seem to budge.do I need a wheel puller because the
Rotors are pressed on or do I need a bigger hammer?

You will likely need to remove the caliper bracket--usually two 15 mm bolts.

This idea may help you separate the disc from the hub: screw two bolts into the disc to push it away from the hub, turning each bolt two turns at a time to prevent cocking the disc excessively.

Be sure to remove all rust, since it can affect lateral runout (LRO).

Did u remove the brackett that holds the break caliber on ?

My misstake disc regarg that last satmtemt