{
 "id": "drawing-interchange-file-format-binary-r13",
 "name": "Drawing Interchange File Format (Binary)",
 "category": "vector-image",
 "identifiers": {
  "extensions": [
   "dxf"
  ],
  "mime": [
   "image/vnd.dxf"
  ],
  "puid": [
   "fmt/82"
  ],
  "wikidata": [
   "Q43974596"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "4175746f4341442042696e617279204458460d0a1a00",
    "notes": "Binary DXF R13"
   }
  ],
  "signatures": [
   {
    "name": "Binary DXF R13",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "4175746f4341442042696e617279204458460d0a1a00*0053454354494f4e0002{0-1}48454144455200*09{0-1}24414341445645520001{0-1}41433130313200*00454e4453454300"
     },
     {
      "position": "eof",
      "offset": 0,
      "pattern": "00454f4600"
     }
    ]
   }
  ],
  "priority_over": [
   "fmt/1394"
  ]
 },
 "status": "unknown",
 "summary": "Binary DXF format is the binary 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. Binary DXF was first developed in AutoCAD Release 10. It should not be confused with the DXB format - this is an entirely separate AutoDesk format for binary encoding vector graphics. Binary DXF Release 13 is the version of the format associated with Release 13 of the AutoCAD software.",
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