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*Details: File format summary



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Name Drawing Interchange File Format (ASCII)
Version 2.1
Other names ASCII DXF (2.1)
Identifiers PUID:  fmt/69
MIME:  image/vnd.dxf
Family DXF
Classification Image (Vector)
Disclosure None
Description ASCII DXF format is the ASCII encoded variant of the Drawing Interchange File Format, an exchange format for vector graphics developed by AutoDesk. They are probably the widely-used formats for exchanging vector data, and have become a de-facto industry standard. The format is owned by AutoDesk and typically changes with each release of their AutoCAD family of products. DXF files contain a tagged representation of the vector data. The structure comprises a Header section, followed by sections containing data on Classes, Tables, Blocks, Entities and, optionally, thumbnail images. Each section contains a series of data elements. each preceded by a group code tag, which indicates the type of data element. ASCII DXF version 2.1 is the version of the format associated with Version 2.1 of the AutoCAD family of software products.
Orientation Text
Byte order  
Related file formats Has priority over AutoCAD Drawing (2.1)
Has priority over Drawing Interchange File Format (ASCII) (Generic)
Is previous version of Drawing Interchange File Format (ASCII) (2.2)
Is subsequent version of Drawing Interchange File Format (ASCII) (2.0)
Technical Environment  
Released 01 May 1985
Supported until  
Format Risk  
Developed by Autodesk
Supported by Autodesk
Source Digital Preservation Department / The National Archives
Source date 11 Mar 2005
Source description  
Last updated 28 Sep 2020
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