CADDS is a CAD system developed by Computer Vision next PTC. CADDS 5 is the last version.

There is no file extension in CADDS. Part, assembly and drawing file are located in a unique diretory per model : 

camu (Concurrent Assembly Mock-Up)
pl01 (drawing)
pl02 (drawing)
pl03 (drawing)
pl04 (drawing)
_fd (parametric)
_pd (3D geometry)
_db (Assembly)

CADDS supported native or neutral formats are IGES, DXF

CAD Interop distributes several solutions to view, translate or validate CADDS files. Find below the list of our products compatible with CADDS: