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# $OpenBSD: cad,v 1.2 2008/05/08 01:40:57 chl Exp $
#------------------------------------------------------------------------------
# autocad: file(1) magic for cad files
#
# AutoCAD DWG versions R13/R14 (www.autodesk.com)
# Written December 01, 2003 by Lester Hightower
# Based on the DWG File Format Specifications at http://www.opendwg.org/
0 string \101\103\061\060\061 AutoCAD
>5 string \062\000\000\000\000 DWG ver. R13
>5 string \064\000\000\000\000 DWG ver. R14
# Microstation DGN/CIT Files (www.bentley.com)
# Last updated July 29, 2005 by Lester Hightower
# DGN is the default file extension of Microstation/Intergraph CAD files.
# CIT is the proprietary raster format (similar to TIFF) used to attach
# raster underlays to Microstation DGN (vector) drawings.
#
# http://www.wotsit.org/search.asp
# http://filext.com/detaillist.php?extdetail=DGN
# http://filext.com/detaillist.php?extdetail=CIT
#
# http://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2
# 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928
# http://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682
# 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F
0 string \010\011\376 Microstation
>3 string \002
>>30 string \026\105 DGNFile
>>30 string \034\105 DGNFile
>>30 string \073\107 DGNFile
>>30 string \073\110 DGNFile
>>30 string \106\107 DGNFile
>>30 string \110\103 DGNFile
>>30 string \120\104 DGNFile
>>30 string \172\104 DGNFile
>>30 string \172\105 DGNFile
>>30 string \172\106 DGNFile
>>30 string \234\106 DGNFile
>>30 string \273\105 DGNFile
>>30 string \306\106 DGNFile
>>30 string \310\104 DGNFile
>>30 string \341\104 DGNFile
>>30 string \372\103 DGNFile
>>30 string \372\104 DGNFile
>>30 string \372\106 DGNFile
>>30 string \376\103 DGNFile
>4 string \030\000\000 CITFile
>4 string \030\000\003 CITFile
# AutoCad, from Nahuel Greco
# AutoCAD DWG versions R12/R13/R14 (www.autodesk.com)
0 string AC1012 AutoCad (release 12)
0 string AC1013 AutoCad (release 13)
0 string AC1014 AutoCad (release 14)
# CAD: file(1) magic for computer aided design files
# Phillip Griffith <phillip dot griffith at gmail dot com>
# AutoCAD magic taken from the Open Design Alliance's OpenDWG specifications.
#
0 belong 0x08051700 Bentley/Intergraph MicroStation DGN cell library
0 belong 0x0809fe02 Bentley/Intergraph MicroStation DGN vector CAD
0 belong 0xc809fe02 Bentley/Intergraph MicroStation DGN vector CAD
0 beshort 0x0809 Bentley/Intergraph MicroStation
>0x02 byte 0xfe
>>0x04 beshort 0x1800 CIT raster CAD
0 string AC1012 AutoDesk AutoCAD R13
0 string AC1014 AutoDesk AutoCAD R14
0 string AC1015 AutoDesk AutoCAD R2000
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