I don't think so, but make a copy so you don't destroy the original project, and try it
Um, yes I did try to open it in V5 before I ask the discussion group however it didn't open.
I'm also having trouble importing MXF files and am trouble shooting to figure out if the problems are version specific or something else.
Since PrPro project is an XML file, you can open it up in any script editor (e.g. Adobe ExtendScript Toolkit) or even text editor, in fourth line find Version="25"
<?xml version="1.0" encoding="UTF-8"?>
<Project ObjectID="1" ClassID="62ad66dd-0dcd-42da-a660-6d8fbde94876" Version="25">
and replace it with Version="23".
Although it works just fine most of the time, bear in mind: everything is at your own peril.
Thanks Fuzzy, I think this is working.
What is this Voodoo? Must be wicked to trick Premiere like that.
Pray for forgiveness.
Just once John. Really. I'm updating on Creative Cloud!