#------------------------------------------------------------------------------ # 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 \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)