I have downloaded a required file for use with one of Neil Munro's
tutorials. The tutorial was written for Inventor 4 and I assume the file was
also created using Inventor 4. Should I use the migration utility to bring
the file into Inventor 6, so that I can do the tutorial? Do I need to use
the utility every time I bring a file created in a different release, into
Inventor 6? TIA, Bob