CAD tip # 2869:

Question CAD
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Error message: File was created by an incompatible version of AutoCAD.

or: Drawing file not valid, not a valid file

You are probably trying to open an AutoCAD 2009/2008/2007 drawing in AutoCAD 2006, an AutoCAD 2010 drawing in AutoCAD 2004, or an AutoCAD 2004 DWG file in AutoCAD 2000/2000i/2002 (generally: a newer DWG format in an older AutoCAD version). Or your DWG file is corrupted.

In the source AutoCAD version, re-save your file into a compatible (older) DWG file format (using the SAVEAS command or OPTIONS > Open&Save > Save As), or upgrade to the current version of your Autodesk product (e.g. 2010).

You can also use the offical version-converter (free) - "Autodesk DWG TrueView 2010" (see www.xanadu.cz/download).

ACAD2010ACAD2008ACAD2004ACAD2000LT

* CAD

27.2.2003 24023x FAQ

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applies to: AutoCAD 2010 · AutoCAD 2008 · AutoCAD 2004 · AutoCAD 2000 · AutoCAD LT ·

See also:
Tip 7171:	How to set a fixed size for a drawing window?
Tip 7167:	Search CAD blocks directly in Windows 7 Search.
Tip 7154:	DWG - DGN format converter.
Tip 7044:	Cannot install AutoCAD on a 64-bit version of Windows?
Tip 6950:	Automatic drawing label - filename, date, author...

Selected tip: How to batch convert DWG drawings to DXF format?

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How to open DWG files easily using their thumbnail previews? « | » What export formats are supported by Inventor?

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