CAD Forum discussion (EN) : Drawing file not valid https://www.cadforum.cz/forum_en/ Sat, 16 May 2026 07:23:41 +0000 Mon, 08 Mar 2010 05:13:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://www.cadforum.cz/forum_en/RSS_post_feed.asp?TID=3249 <![CDATA[CAD Forum discussion (EN)]]> https://www.cadforum.cz/forum_en/forum_images/web_wiz_forums.png https://www.cadforum.cz/forum_en/ <![CDATA[Drawing file not valid : CarlB wrote:OK for grins...c...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8780&title=drawing-file-not-valid#8780 Author: randal_ashford
Subject: 3249
Posted: 08.Mar.2010 at 05:13

Originally posted by CarlB CarlB wrote:

OK for grins...
c a b AT e e i t e a m DOT c o m

sorry what did you mean?? nah no .bak files at all... unfortunately....
 
I have about 1000 really good drawing files taht i cant open. its driving me crazy. Some work some dont
]]> Mon, 08 Mar 2010 05:13:03 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8780&title=drawing-file-not-valid#8780 <![CDATA[Drawing file not valid : did you have backup file? i mean...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8729&title=drawing-file-not-valid#8729 Author: maser
Subject: 3249
Posted: 04.Mar.2010 at 07:14

did you have backup file? i mean in format .bak.. change into dwg, and recover..


]]> Thu, 04 Mar 2010 07:14:54 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8729&title=drawing-file-not-valid#8729 <![CDATA[Drawing file not valid : OK for grins...c a b AT e e i...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8728&title=drawing-file-not-valid#8728 Author: CarlB
Subject: 3249
Posted: 04.Mar.2010 at 06:43

OK for grins...
c a b AT e e i t e a m DOT c o m

]]> Thu, 04 Mar 2010 06:43:59 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8728&title=drawing-file-not-valid#8728 <![CDATA[Drawing file not valid : anyone else willing to try have...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8727&title=drawing-file-not-valid#8727 Author: randal_ashford
Subject: 3249
Posted: 04.Mar.2010 at 06:06

anyone else willing to try have a go??
 
Thanks heaps
]]> Thu, 04 Mar 2010 06:06:20 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8727&title=drawing-file-not-valid#8727 <![CDATA[Drawing file not valid : randal_ashford wrote:Hello...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8677&title=drawing-file-not-valid#8677 Author: Arben.Allaraj
Subject: 3249
Posted: 01.Mar.2010 at 09:16

Originally posted by randal_ashford randal_ashford wrote:

Hello All,

Thanks for the replies.
 
I opened the file with notepad and this is what comes up:
 
˙Ř˙ŕ JFIF  H H  ˙ţ AppleMark
˙Ű „ ˙Ģ     
 
at the beginning.
 
I opened a different one and all the text was in chinese.

But what stuns me, is that some of the recovered files open perfectly... but just not the ones i wanted. lol
 
Can i upload one of the drawings? or email someone on here one of the drawings to see what they can do??
 
THanks alot

 Ok Send it in arben.allaraj@gmail.com and I 'll check it.
]]> Mon, 01 Mar 2010 09:16:47 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8677&title=drawing-file-not-valid#8677 <![CDATA[Drawing file not valid : Hello All, Thanks for the replies. I...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8674&title=drawing-file-not-valid#8674 Author: randal_ashford
Subject: 3249
Posted: 01.Mar.2010 at 00:59

Hello All,

Thanks for the replies.
 
I opened the file with notepad and this is what comes up:
 
˙Ř˙ŕ JFIF  H H  ˙ţ AppleMark
˙Ű „ ˙Ģ     
 
at the beginning.
 
I opened a different one and all the text was in chinese.

But what stuns me, is that some of the recovered files open perfectly... but just not the ones i wanted. lol
 
Can i upload one of the drawings? or email someone on here one of the drawings to see what they can do??
 
THanks alot
]]> Mon, 01 Mar 2010 00:59:37 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8674&title=drawing-file-not-valid#8674 <![CDATA[Drawing file not valid : &#034;Drawing file not valid&#034;...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8657&title=drawing-file-not-valid#8657 Author: Vladimir Michl
Subject: 3249
Posted: 26.Feb.2010 at 09:34

"Drawing file not valid" means that either the DWG format is too new for your AutoCAD version (probably not the case here), or that the internal file structure is seriously damaged.

Look inside your DWG file with a text view (e.g. Notepad) and check whether it starts with the AC10... signature - see:

http://www.cadforum.cz/cadforum_en/qaID.asp?tip=868

Recovered files often have large portions cleared with null characters - such files will not be recoverable unfortnately (in any CAD software).]]> Fri, 26 Feb 2010 09:34:03 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8657&title=drawing-file-not-valid#8657 <![CDATA[Drawing file not valid : Try opening them with an AutoCAD...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8655&title=drawing-file-not-valid#8655 Author: CarlB
Subject: 3249
Posted: 26.Feb.2010 at 09:20

Try opening them with an AutoCAD clone like ProGE CAD or Bricscad; they seem to be less picky if the file structure is not perfect. (using a free trial)]]> Fri, 26 Feb 2010 09:20:53 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8655&title=drawing-file-not-valid#8655 <![CDATA[Drawing file not valid : randal_ashford wrote: Hello, I...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8654&title=drawing-file-not-valid#8654 Author: Arben.Allaraj
Subject: 3249
Posted: 26.Feb.2010 at 09:16

Originally posted by randal_ashford randal_ashford wrote:

Hello,
 
I recently lost about 5 years of files and digital folders from a power strike. (files cannot be recovered from a data recovery specialist).
 
Anyways, I managed to recover some of the files off an external hard drive that i had them on temporarily using pc inspector - file recovery.
 
I have recovered the files but when i try open them with autocad 2010, it says drawing file not valid.
 
The files were probably created in autocad 2000 or 2004.
 
I have tried recovering the files, inserting the files.
 
Does anyone have any ideas of what i can do or try?
 
Regards

Randal

 Try to open with AutoCAD 2004 then 2010.

]]> Fri, 26 Feb 2010 09:16:15 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8654&title=drawing-file-not-valid#8654 <![CDATA[Drawing file not valid : Hello, I recently lost about...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8652&title=drawing-file-not-valid#8652 Author: randal_ashford
Subject: 3249
Posted: 26.Feb.2010 at 04:10

Hello,
 
I recently lost about 5 years of files and digital folders from a power strike. (files cannot be recovered from a data recovery specialist).
 
Anyways, I managed to recover some of the files off an external hard drive that i had them on temporarily using pc inspector - file recovery.
 
I have recovered the files but when i try open them with autocad 2010, it says drawing file not valid.
 
The files were probably created in autocad 2000 or 2004.
 
I have tried recovering the files, inserting the files.
 
Does anyone have any ideas of what i can do or try?
 
Regards

Randal
]]> Fri, 26 Feb 2010 04:10:59 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=3249&PID=8652&title=drawing-file-not-valid#8652