C# .NET 3D File Manipulation and Conversion API can load and save 3DS, 3MF, AMF, FBX, IFC, BLEND, PCD, XYZ, DFX, OBJ, PLY, STL, USD, U3D and other formats...0 ASCII/Binary with Draco extension IFC Industry Foundation Classes...PRC and U3D with RH Mesh extension are not supported yet. PCD...