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CAD tip CAD tip # 1820:

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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    14388x   FAQ  
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applies to: AutoCAD · AutoCAD LT ·

See also:
Tip 11349:How to list Revit room areas by the DIN 277-1 standard?
Tip 11337:Convert 3D PDF files back to CAD models.
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​

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Export 3D VRML scenes from AutoCAD and Inventor 2015
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