convertire file

[mekeuro]

guys sent me some drawings with the r21 version I have the r20 version and of course I do not open them, it gives me error.
is it possible to convert them so that I can open them?
thanks in advance

 

[nino66]

Unfortunately the only solution is to ask you to catback (reversion from r21 to r20) from who gave you the file.... or get the r21 version....
Hello and good luck.