cutting expensive wood or plywood

One way to reduce the fraying on the cut, when using a table saw, is to make sure the rip fence is perfectly in line with the saw blade. if it is off line a little bit you will see evidence of fraying on the back side of the cut.
A good quality Rip Fence is very important.

You can try masking tape over the cut line to help keep the fibers on the edge from pulling up.

Or Use a Router, fitted with a straight bit will cut a clean line. A pilot bit and straight edge will help provide a clean line.