It is possible, as confirmed by Intuit (unofficially), but it must be done offline by Intuit.  Also, the conversion must first be to Lacerte, which you then use to export the data for conversion to PS.  This means you'd need at least a REP subscription to Lacerte just to do that.

Intuit suggests doing the conversion manually if the volume is low because the offline process is very time consuming but we're waiting for a confirmation of what that manual process entail.

[Edit: Darn auto correction]