Hi,I am currently in a bit of a pickle.I use Inventor 2014 at work and that is fine. However, when I am in college, any college work I do at work cannot be opened because the college use Inventor 2011.Does anybody know how I may be able to back save or even save the part & assemblies in a way which is compatible with both versions.I understand that there is a part tree for each assembly but I'm not particularly bothered if I have to re-assign all of the separate parts every time I open the assembly.Any help would be very much appreciated.Thanks.

I was under the impression there is no "going back" in Inventor.Found this partial solution.  Can't tell you if it works though.Save Copy As type STEP (*.step).Use Feature Recognition add-in from labs.autodesk.com in 2013.out of luck for drawings (*.idw or *.dwg).
John Connor2014-03-04 13:51:09

Hi John Connor,I think that may be the problem. However, I posted this also on the Autodesk website forum and there has been a possible untested solution put up where I can save all .ipt & .iam documents as .stp files which may allow the older version to load up the assembly mainly but without the feature tree.Something which I can always re-configure in the long run but as long as it saves me doing the components again is the main thing. The assembly isn't exactly the end of the world.I mainly posted because there could have been a possibility where someone found a loop hole in the process which allowed it but that's not the case up to now.

Well that's what you end up with when you use a "modern" CAD program not an old dinosaur like AutoCAD where one can back save several releases/versions.  It's the old "be careful what you wish for" thing. 

Hi All,Just to let you know it sort of worked in the end.I saved the separate parts as STEP files and then I managed to open up the 'old versions' and then 'save copy as' to update the drawing to 2011 format.I lost the assembly but I was only part way through that anyway as it is a working progress so that never took too long to re-do.Thank you everybody for your help and advice.

OK...glad to hear you basically got what you were looking for (with a little extra effort).

Well as I said the assembly I a working progress anyway so I would have most probably had to change it in the near future anyway.It was however quite a pain in the a**e way to go about it to be honest. The more annoying thing is that I never actually modified the parts in any way on 2014 so its not as if there was a process which wasn't supported on 2011. I literally opened the parts up in 2014 to look at something and by routine, saved as I closed.Well resolved now anyway, thank you again for the advice.