AEC Objects Won't Show Correctly in AutoCAD Architecture 2008

[Anonymous]

When open a dwg file in ACA 2008 that was previously save in ACA 2011 as a 2007 dwg format, all of the AEC objects don't show correctly. They show as lines no matter what visual style I use. Is there any way I can get them to display correctly in ACA 2008.

Thanks

Michael

[David_W_Koch]

No. There was a file-format change with the 2010 release, and as in previous file-format changes, AEC objects cannot be saved back to a previous format and remain usable as AEC objects.

You can save proxy objects or you can export to the 2007 format (which explodes to AutoCAD objects).  If you need to share files with others and have working AEC objects go back and forth, then all parties need to be working in releases with the same file format (preferrably, on the same release).