Converting an LLC to S Corp

Hello



I am an IT consultant and have created an LLC to offer my consultancy under. Someone told me that I should have created an S Corp instead of an LLC because S Corp is more flexible than LLC and more tax can be saved under an S Corp. I needed to know is this right that I can save more money under an S Corp. If yes then is there any way to change my existing LLC to an S corp.



Any advice and help would be greatly appreciated



Thanks