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CAD tip # 8311:

Question

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How to save Revit project to an older version?

BIM applications, including Autodesk Revit, use file formats, which are only upwards compatible - so by default you cannot save ("downgrade") projects to an older version of the given CAD/BIM application.

An alternative way of transferring a substantial part of your project (BIM model) to a previous version of the program is the exchange format IFC (Industry Foundation Classes, specified by IAI). Revit supports both export and import of this format. So instead of saving RVT perform an Export to a .IFC format file in the higher version, and then Import this file in the lower version. See "R" > Export > IFC and "R" > Open > IFC.

Always use the highest version (specification) of the IFC format supported in both versions of the application - e.g. "IFC 2x3" or "IFC 2x2" and set the requested export options (views, segmentation of building elements, etc.) - see "IFC Options".

Remember that part of the project information will not be transferred when using this method.

Revit

* CAD

8.11.2011 4552x

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applies to: Revit ·

See also:
Tip 9230:	Undocumented: IFC export available also in Revit LT.
Tip 9180:	CAD file formats supported in Autodesk Navisworks 2014.
Tip 9051:	IFC export from Revit - incl. ifcXML and ifcZIP
Tip 8703:	File formats compatible with Autodesk BIM 360 Glue.
Tip 8549:	CAD file formats supported in Autodesk Navisworks 2013.

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