DXF

File Format
Name	DXF
Ontology	Electronic File Formats 3D and CAD/CAM Models DXF
Extension(s)	.dxf
PRONOM	fmt/63, others

Overview

DXF stands for Drawing Exchange Format (or Drawing Interchange Format) and was created by AutoDesk for their AutoCAD and AutoDRAW CAD systems.

Identifiers

Format	PRONOM
DXF	fmt/63
DXF 1.0	fmt/64
DXF 1.2	fmt/65
DXF 1.3	fmt/66
DXF 1.4	fmt/67
DXF 2.0	fmt/68
DXF 2.1	fmt/69
DXF 2.2	fmt/70
DXF 2.5	fmt/71
DXF 2.6	fmt/72
DXF R9	fmt/73
DXF R10	fmt/74, fmt/80
DXF R11/R12	fmt/75, fmt/81
DXF R13	fmt/76, fmt/82
DXF R14	fmt/77, fmt/83
DXF 2000-2002	fmt/78, fmt/84
DXF 2004/2005/2006	fmt/79, fmt/85
DXF 2007/2008/2009	fmt/433
DXF 2010/2011/2012	fmt/435
DXF 2013/2014	fmt/532

Resources

• Wikipedia page on DXF
• Short high-level overview from fileformat.info here
• Official AutoDesk specifications for each version of AutoCAD (13 and higher), for example this from AutoCAD 2008