Hey Eve i've been wondering is it possible to re-do the arena ?? [ without Hero Save Exp. Expoilt? ]
If u can how do u do it again ?

no sorry u can't but you can hero save and do it all again

but here is some info on how to do it

First, just do the Arena as normal, getting to the late rounds and try not to
stop. If you don't stop, your gold winnings should reach above 28,000 gold.
Now, after you kill the Stone Golem, the round before the Scorpion King boss,
take a break and go to the preparation area. You should recieve your gold, and
it should total 28,600 gold if you never stopped and quit before the final
round. Now you have all that experience and gold, now this is what you do. Go
to the start menu, and Hero Save. It is a very obvious loophole once you see
it the first time. Now Hero Save over the save file you had before the Arena,
probably an auto-save, or a manual save if you saved before you entered the
Arena. Now, load your Hero-saved file, and you should be where you were before
the Arena, and have all the experience and gold and renown you had during it.
Using this, you can easily max your stats out fairly quickly, which is useful
if you want to pull out the Sword in the Stone at Avo before you get better
weapons than it.

This secret can be done as many times as you want, resulting in large sums of
gold, and experience, and can get you to the last renown rank fast. Using this
secret doesn't cause ANY malfunctions, code glitches, or any problems actual
codes might cause. Have fun with this!

Also you will be stuck on a forzen screen XD thats if you do it to many times.

It depends. So far as I'm aware, the hero save glitch occurs only in the Lost Chapters version of the game. If you are playing the original version, you should be able to use the hero save exploit as many times as you want.