CAD tip # 2869:

Question

CAD

% platform category

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 2011 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. 2015).

You can also use the offical DWG-version-converter (free) - "Autodesk DWG TrueView 2015" (see Download).

ACAD2010ACAD2008ACAD2004ACAD2000ACLT

*CAD

27.2.2003 90954× FAQ

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

See also:
Tip 14472:	Overview of CAD formats supported in Inventor 2026 (import/export/AnyCAD).
Tip 14457:	What is the difference between the commands GEOGRAPHICLOCATION, MAPCSASSIGN and GEOCSASSIGN in Map/Civil 3D?
Tip 14431:	What are the AutoCAD commands -FIND, FINDMATCH and FINDINCLUDE?
Tip 14402:	What is the difference between the BLOCKREPLACE, BREPLACE, REPLACEBLOCK, RIBLOCK and BLKREDEF commands?
Tip 14392:	How to get rid of the dot displayed by P&ID symbols in Plant 3D?

Selected tip: How to influence the order of attribute prompts when inserting a block?

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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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