Conversion from Topsolid to CATIA is not supported yet :(

TopSolid is a completely integrated CAD/CAM software which was created by the French company Missler Software. It is based on the geometric kernel ParaSolid. As it is fully integrated, it allows users to design and manufacture parts using the same software. There is a wide range of Topsolid industry solutions: from the more general, mechanically oriented (TopSolid’Design) to specific solutions.

Actually, there is a whole line of CAM products: mechanical machining (TopSolid’Cam), sheet metal (TopSolid’Sheetmetal), wood (TopSolid’WoodCam), wire electroerosion (TopSolid’Wire). TopSolid also incorporates additional modules: a 2D draft module (TopSolid’Draft) and a structural computation one (TopSolid’Fea).

TopSolid'Cam, one of the main products of Topsolid, manages multi axis machining such as 5 axis machining, mill turn operations, twin Spindle and twin turret technology.

TopSolid 7 is claimed to simplify the design and modification of large assemblies in an organized and structured environment.

CATIA is a multi-platform software kit for CAD/CAM/CAE, PLM and 3D, created by the French company Dassault Systèmes.

Commonly referred to as a 3D PLM software suite, CATIA supports all stages of product development, including conceptualization, design, engineering and manufacturing. CATIA facilitates collaborative engineering across disciplines around its 3DEXPERIENCE platform, including surfacing & shape design, electrical, fluid and electronic systems design, mechanical engineering and systems engineering. CATIA facilitates the design of electronic, electrical, and distributed systems such as fluid and HVAC systems, all the way to the production of documentation for manufacturing.