CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor and other Autodesk products []
Cesky English Deutsch
 Visitors: 4569 
Plex.Earth connects AutoCAD and Google Earth

CAD tip CAD tip # 868:

Question CAD 
 %  platform  category 
Q - question

How to find drawings coming from a given version of AutoCAD?

A - answer (or how to find which AutoCAD Release has generated given DWG file)

You can use the Find Files function in Windows (Start button). Enter *.DWG as file name in the Advanced tab enter text:

  • MC0.0 - DWG from Rel. 1.1
  • AC1.2 - DWG from Rel. 1.2
  • AC1.4 - DWG from Rel. 1.4
  • AC1.50 - DWG from Rel. 2.0
  • AC2.10 - DWG from Rel. 2.10
  • AC1002 - DWG from Rel. 2.5
  • AC1003 - DWG from Rel. 2.6
  • AC1004 - DWG from Rel.9
  • AC1006 - DWG from Rel.10
  • AC1009 - DWG from Rel.11/12 (or LT R1/R2)
  • AC1012 - DWG from Rel.13 (or LT95)
  • AC1014 - DWG from Rel.14, 14.01 (or LT97/LT98)
  • AC1015 - DWG from AutoCAD 2000/2000i/2002 (or LT, Map or relative Desktop version)
  • AC1018 - DWG from AutoCAD 2004/2005/2006 (or other product in the "2004", "2005" or "2006" family)
  • AC1021 - DWG from AutoCAD 2007/2008/2009 (or other product of the "2007", "2008" and "2009" families)
  • AC1024 - DWG from AutoCAD 2010/2011/2012 (or other product of the "2010", "2011" and "2012" families)
  • AC1027 - DWG from AutoCAD 2013/2014/2015/2016 (or other product of the "2013", "2014", "2015" and "2016" families)

There are also other, internal file versions: AC1001=pre-2.5, AC1005=pre-R10, AC1007=pre-R11, AC1008=pre-R11, AC1010=pre-R13a, AC1011=pre-R13b, AC1013=pre-R14, AC1500=pre-2000, AC402a=pre-2004a, AC402b=pre-2004b

You can also text-view your DWG file and look at the string at the beginning of your file. Or you can use the DWGinfo utility available at

To visually identify .DWG file version by its icon in Windows Explorer you can use the DWGicon shell extension (see [URL verified 9/2004]).

100% *  CAD 
8.1.2001    80504x   FAQ  
Comments   Tell a friend

See also:
Tip 10556:AutoCAD 2015 and 2016 do not allow to select paper size for Designjet T120/T520.
Tip 10487:How to save a DWG/DXF in older format from AutoCAD 360?
Tip 10461:Unattended DWG plotting and PDF publishing without AutoCAD.
Tip 10303:Overview of CAD formats supported in Inventor 2016 (import/export).
Tip 10301:How to export PDF with hyperlinks from AutoCAD?

Back   All CAD Tips All CAD tips&tricks

Transparent background in WMF. « | » How to plotstamp a printout from AutoCAD 2000? I have used HPCONFIG in R14.

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link: CAD Forum - tips, utilities, blocks for Autodesk products
CAD:    OS:    Categ: 
Text:  FAQ glossary   

Use Google Earth images in your AutoCAD projects with the Plex.Earth Tools More info

Please use these tips at your own risk.
CAD Studio (Xanadu) is not responsible for possible problems that may occur as a result of using any of these tips.