Mark the spring so you won't put them back in upside down.
Once you can wiggle the spring, it is now safe to undo the strut retaining nut, take out the special washer, undo the cross shaped retaining nut with a pipe wrench, and take out the strut bearing mount and spring seat.
The manual said inspect for damage and replace as needed. But I say, if your car have more than 60000 miles, just replace them, they're gonna die soon anyway. Also the dust boot and cap might be cracked, replace those if you need to. Mine are fine, so I just reused them.