Conversion from Tekla to CATPart is not supported yet :(

Tekla, owned by Trimble is a software product family that consists of programs for analysis and design. Tekla software includes several applications.

Tekla Structures is 3D BIM software widely used in the building and construction industries. The software allows users to create and operate 3D structural models in concrete or steel and leads them through the process from concept to fabrication.

Tekla Structural Designer is a software app for analysis and construction design. It is used by structural engineers.

Tekla Tedds is a software solution for automating repetitive calculations. It is used in engineering for creating output such as calculations, sketches and notes.

Tekla BIMsight is an application for building information model-based construction project collaboration.

CATPart is a native format developed by Dassault Systems for storing parts of the assemblies created in CATIA V5 software suite, which is extensively used in mechanical engineering including aerospace, automotive, shipbuilding and other domains.

CATPart stores geometry, structure and metadata of 3D models dedicated to single parts. Multiple CATPART files can be combined into a CATProduct assembly file.

Among CAD applications that support CATPart extension are Autodesk Inventor, Fusion 360, and 3ds Max.