Aspose.3D FOSS for .NETFree, open-source .NET library for reading and writing 3D files (OBJ, STL, glTF, FBX, COLLADA, PLY, 3MF). Install with dotnet add package Aspose.3D.Converter.Browse how-to guides:How to Load 3D Models in .NET How to Convert 3D Models in .NET FAQ — Aspose.3D FOSS for .NET