You can't and never could save a file in a previous version of Inventor's
format. If it's absolutely necessary to open a part in an older version,
STEP or ACIS is your only route and it'll come in as a dumb solid...
"Anthony"
wrote in message
news:A4512454EC446B9D456C07E894823FB5@in.WebX.maYIadrTaRb...
> Is there any way to save back to Save back to Inv 7 I Am the only one
> testing out Inv 8 and nobody can open my files.
>
> Thanks
>
>