Doublecad. Free. https://www.turbocad.com/content/doublecad-xt-v5
3D S: AutoDesk 3D Studio format. See #Rted40613 or #Rted61679.
3 DV: VRML Worlds (import only)
ASAT: ACIS solid modeling file format for storing graphics as ASCII files. See #Rted53918 or #Rted19145.
BM P: Bitmap format, DoubleCAD for Windows (export only). A bitmap is a representation of a graphic image consisting of rows and columns of dots. See #Rted38114.
C GM: Computer Graphics Metafile. See #Rted88271.
DAE: Collada files (export only). See #Rted32052.
*D : DesignCAD (import only)
DG N: Intergraph Standard file format. See #Rted15198 or #Rted13353.
D WF: Drawing Web format. See #Rted88759. Import is automatic.
D WG: AutoCAD native format for vector graphics. See #Rted63146 or #Rted53755.
DX F: Drawing eXchange format, used by AutoCAD to interact with other applications.
E PS: Encapsulated Post Script format. See #Rted96032 or #Rted69700
F CD: FastCAD DOS format (import only)
FC W: FastCAD Windows format (import only). See #Rted51994.
GIF: Raster graphic format (export only). See #Rted65451.
G EO: VRML Worlds (import only)
I GS: IGES format. See #Rted20977.