Drawing file not valid 2009

i am using autocad 2009. it is showing an error message while opening a file which was used in autocad 2009 saved in 2004. tried recovering had no use. does trueview help in getting my files back. is there any way to get my files back. plz help.

Rather than piggyback on an old thread, I moved your post to a new thread.

Have you searched the Autodesk KB?

I seem to remember a problem with version 2007 drawings saved down to 2004.

Also, do you have all the updates for 2009 installed?

Like rkmcswain said, "I seem to remember a problem with version 2007 drawings saved to 2004."

Do check Autodesk's webside for a hot fix. And, you might search CadTutor, I believe I read 'bout the same problem on another post.

Welcome zalmon to the forums! Where might you be posting from?

Rather than piggyback on an old thread, I moved your post to a new thread.

 

Have you searched the Autodesk KB?

I seem to remember a problem with version 2007 drawings saved down to 2004.

Also, do you have all the updates for 2009 installed?

all the updates were installed but still not working. but this is regarding with some files on which i was working earlier as every file i save it in 2004 format. I doubt whether the file has been corrupted, if yes is there any way to recover the corrupted files

Like rkmcswain said, "I seem to remember a problem with version 2007 drawings saved to 2004."

 

Do check Autodesk's webside for a hot fix. And, you might search CadTutor, I believe I read 'bout the same problem on another post.

 

Welcome zalmon to the forums! Where might you be posting from?

YES I have searched all the other forums none of them solved my problem........ INDIA:unsure:

... is there any way to recover the corrupted files

Do you have the .bak files?

before my pc got formatted i copied all my drawing files to pendrive (only dwg files) and latter while opening displayed DRAWING IS NOT VALID:(

So it immediately states 'drawing file not valid' even when trying to use the 'RECOVER' command via the File menu pulldown (no drawings opened, it checks the drawing before opening it), maybe there's an error but I doubt it, just another thing to try. Usually that message is in place when you try to open a newer version of the file (saved in say 2007 format) in 2004 ACAD or the like.

So it immediately states 'drawing file not valid' even when trying to use the 'RECOVER' command via the File menu pulldown (no drawings opened, it checks the drawing before opening it), maybe there's an error but I doubt it, just another thing to try. Usually that message is in place when you try to open a newer version of the file (saved in say 2007 format) in 2004 ACAD or the like.

but i am using autocad 2009 which i have saved it in 2004 format. i have tried the DWG TRUE VIEW 2010 to open this file. it didn't worked is there any other way to recover those drawings:cry:

Honestly you might be out of luck, from my experiences, these are the things I have tried......

If the drawing won't open at all, use 'RECOVER'. Try other versions of AutoCAD to open the drawing (not valid can mean it was saved to a newer file format then your current AutoCAD version is). Try to view the drawing through AutoDesk Design Review or something similar to that (dwg viewer). Try to start a new drawing and 'insert' or 'xref' the drawing in, then explode or bind/insert it.

No clue why you can't open it, I mean technically if it's saved back to an earlier version, there is no reason why it shouldn't open. Will brainstorm here and thing of some other ideas for you to try.

try a partial open

If the drawing won't open at all, use 'RECOVER'. Try other versions of AutoCAD to open the drawing... Try to view the drawing through AutoDesk Design Review or something similar to that (dwg viewer). Try to start a new drawing and 'insert' or 'xref' the drawing in, then explode or bind/insert it.

Design Review cannot open DWG files. DWG Trueview can, but the engine is the same as AutoCAD, so results won't differ.

I compiled a few more alternatives a while back.. http://cadpanacea.com/node/18

I've had the same problem and i noticed it happens when i downloaded the file to a given folder, then moved the file to another folder and then tried opening it. So what i did was downloaded to any given folder and opened it right away, then do a "save as".

I don't know if i'll work for everyone but why not try it out...good luck