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CAD tip CAD tip # 1820:

Question CAD 
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Q - question

How compatible are the so called "DWG-compatible" applications?

A - answer See the BUDWEISER benchmark DWG drawing by Xanadu/CAD Studio (BUDWEISER.DWG is downloadable from as an example for testing of DWG compatibility. Load this DWG (AutoCAD 2000, 2004 or AutoCAD 2007, 2008, 2010, 2013 format) in any non-Autodesk CAD application and watch the differences.

True genuine DWG files are reported in AutoCAD as "TrustedDWG". Forged "DWG" files use only the same file extension but not the original file format. You can loose your design data with such incomplete reverse-engineered file formats.

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13.12.2001    14291x   FAQ  
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applies to: AutoCAD · AutoCAD LT ·

See also:
Tip 11230:Can I use AutoCAD LT for Mac 2015/2016 on MacOS Sierra?
Tip 10903:How to import an Illustrator file (.AI) into AutoCAD (.DWG)?
Tip 10612:Revit error: Unable to open because of unresolved pointer references​
Tip 10482:Compatibility of Autodesk products with Windows 10.
Tip 10414:FATAL ERROR when starting AutoCAD 2016 - Access Violation Reading 0x0018.

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Generate hatch patterns automatically from your DWG drawings with
HGEN 2006 More info

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