2 #------------------------------------------------------------------------------
3 # autocad: file(1) magic for cad files
6 # AutoCAD DWG versions R13/R14 (www.autodesk.com)
7 # Written December 01, 2003 by Lester Hightower
8 # Based on the DWG File Format Specifications at http://www.opendwg.org/
9 0 string \101\103\061\060\061 AutoCAD
10 >5 string \062\000\000\000\000 DWG ver. R13
11 >5 string \064\000\000\000\000 DWG ver. R14
13 # Microstation DGN/CIT Files (www.bentley.com)
14 # Last updated July 29, 2005 by Lester Hightower
15 # DGN is the default file extension of Microstation/Intergraph CAD files.
16 # CIT is the proprietary raster format (similar to TIFF) used to attach
17 # raster underlays to Microstation DGN (vector) drawings.
19 # http://www.wotsit.org/search.asp
20 # http://filext.com/detaillist.php?extdetail=DGN
21 # http://filext.com/detaillist.php?extdetail=CIT
23 # http://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2
24 # 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928
25 # http://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682
26 # 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F
27 0 string \010\011\376 Microstation
29 >>30 string \026\105 DGNFile
30 >>30 string \034\105 DGNFile
31 >>30 string \073\107 DGNFile
32 >>30 string \073\110 DGNFile
33 >>30 string \106\107 DGNFile
34 >>30 string \110\103 DGNFile
35 >>30 string \120\104 DGNFile
36 >>30 string \172\104 DGNFile
37 >>30 string \172\105 DGNFile
38 >>30 string \172\106 DGNFile
39 >>30 string \234\106 DGNFile
40 >>30 string \273\105 DGNFile
41 >>30 string \306\106 DGNFile
42 >>30 string \310\104 DGNFile
43 >>30 string \341\104 DGNFile
44 >>30 string \372\103 DGNFile
45 >>30 string \372\104 DGNFile
46 >>30 string \372\106 DGNFile
47 >>30 string \376\103 DGNFile
48 >4 string \030\000\000 CITFile
49 >4 string \030\000\003 CITFile
51 # AutoCad, from Nahuel Greco
52 # AutoCAD DWG versions R12/R13/R14 (www.autodesk.com)
53 0 string AC1012 AutoCad (release 12)
54 0 string AC1013 AutoCad (release 13)
55 0 string AC1014 AutoCad (release 14)
57 # CAD: file(1) magic for computer aided design files
58 # Phillip Griffith <phillip dot griffith at gmail dot com>
59 # AutoCAD magic taken from the Open Design Alliance's OpenDWG specifications.
61 0 belong 0x08051700 Bentley/Intergraph MicroStation DGN cell library
62 0 belong 0x0809fe02 Bentley/Intergraph MicroStation DGN vector CAD
63 0 belong 0xc809fe02 Bentley/Intergraph MicroStation DGN vector CAD
64 0 beshort 0x0809 Bentley/Intergraph MicroStation
66 >>0x04 beshort 0x1800 CIT raster CAD
67 0 string AC1012 AutoDesk AutoCAD R13
68 0 string AC1014 AutoDesk AutoCAD R14
69 0 string AC1015 AutoDesk AutoCAD R2000