AutoCAD R12/R13/R14 Archive

New Member
Posts: 2
Registered: ‎12-07-2012
Message 1 of 3 (586 Views)

Help opening old .dwg files!!

586 Views, 2 Replies
12-07-2012 02:05 PM

I have a few old .dwg files (from 1993), and I can't seem to get them to open in AutoCAD 2007. I've tried a couple of dwg viewers, but none of them have worked either. Because they are 20 years old, no one knows which program was used to create them either, but since they are .dwg, I was assuming they are AutoCAD.


Does anyone know how I can open them, or at least convert them to a useable format?

Posts: 25
Registered: ‎05-29-2003
Message 2 of 3 (582 Views)


12-07-2012 02:39 PM in reply to: yangster777

All dwg files should open with any AutoCAD release that is newer than the release it was last saved in.  Sounds like you have corrupt dwg files.


Viewed in a HEX viewer, the 1st 6 characters should look like     AC1009      (  the 1009 designates the release in the dwg file was last saved in -  R12 in this case).   -David

New Member
Posts: 2
Registered: ‎12-07-2012
Message 3 of 3 (575 Views)

Re: d

12-07-2012 03:49 PM in reply to: DavidBethel

Thanks. It looks like those files are corrupt.

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