How to protect file saving in different versions in catia
for example I modled one file using V5-R19.
if I am checking same file in V5-R21 or any other higher version how Can I protect that file from saving.
like If i by mistaken save lower version files into higher version it is not possible to covert same parametric file into lower version.
So if any boday kowns some setting or Micros for protecting this please share or answer here.