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fDesc[0] = "The STL Export Add-In for Revit is designed to produce a stereolithography file (STL) of your building model. The Revit team has developed a tool to export STL files from the Revit family of applications (Architecture, Structure, and MEP). STL is a popular file format for stereolithography used for rapid prototyping and computer aided manufacturing. An STL file describes the surface geometry of a 3D object.";

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