Arch 3DS
The Arch Workbench supports importing 3DS files. The 3DS format is ancient but still widely used on the internet. It can contain mesh data and material information. At the moment, it will import mesh objects contained in the file as FreeCAD mesh objects, and has no support for materials yet.
Arch 
- Elements: Wall, Structure, Roof, Window, Door, Stairs, Space, Frame, Equipment; Pipe, Pipe Connector; Schedule
- Reinforcements: Rebar; Straight Rebar, UShape Rebar, LShape Rebar, Bent Shape Rebar, Stirrup Rebar, Helical Rebar
- Panels: Panel, Panel Cut, Panel Sheet, Nest
- Materials: Material, Multi-Material
- Organization: Site, Reference, Building, Floor, Building Part, Section Plane
- Axes: Axis, Axes system, Grid
- Modification: Cut with plane, Add component, Remove component, Survey
- Utilities: Component, Clone component, Split Mesh, Mesh To Shape, Select non-solid meshes, Remove Shape, Close Holes, Merge Walls, Check, Ifc Explorer, Toggle IFC Brep flag, 3 Views from mesh, Create IFC spreadsheet, Toggle Subcomponents
- Additional: Preferences, Import-Export Preferences (IFC, DAE, OBJ, JSON, 3DS); Arch API
User documentation 
- Installation: Unix, Windows, Mac; Getting started
- Basics: About FreeCAD, Workbenches, Preferences, Document structure, Interface Customization, Properties, Mouse Model; Tutorials
- Workbenches: Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Plot, Points, Raytracing, Reverse Engineering, Robot, Ship, Sketcher, Spreadsheet, Start, Surface workbench, TechDraw, Test Framework, Web
- Scripting: Introduction to Python, FreeCAD scripting tutorial, FreeCAD Scripting Basics, How to install macros, Gui Command, Units Modules: Builtin modules, Workbench creation, Installing more workbenches Meshes: Mesh Scripting, Mesh Module Parts: The Part Module, Topological data scripting, PythonOCC, Mesh to Part Coin scenegraph: The Coin/Inventor scenegraph, Pivy Qt interface: PySide, Using the FreeCAD GUI, Dialog creation Parametric objects: Scripted objects Other: Code snippets, Line drawing function, Embedding FreeCAD, FreeCAD vector math library, Power users hub, Python, Macros, FreeCAD Scripting Basics, Topological data scripting
