What is FCSTD file?
FreeCAD is a modern CAD program that can be used to do everything from drafting blueprints to building 3D models. It has a unique feature called FreeCAD Document format (FCSTD). FCSTD is a simple file format that contains only one type of data: the part model. Data structures are defined by FreeCAD document structure and these files have the extension *.fcstd.
FCSTD Format details
Software, that convert FCSTD files
The easiest way to convert a FCSTD file is to save it in a different file format using dedicated software. Below you will find a list of software programs that can handle FCSTD files. Open your FCSTD file with one of them and save in another file format.