Autocad drawing file is not valid 2011

Hi everyone, I have a dwg file that keeps showing 'drawing file is not valid' message. Kind Regards Ashley Solved! Labels 1. Message 2 of Message 3 of Message 4 of Difficult without the file CDay not an Autodesk consultant. Message 5 of Hi Alfred, Do you mind if I send you the file? Not very big only 2M. Message 6 of Hi, attach it here.

Message 7 of Hi, I have attached it here. Message 8 of Message 9 of No program I have that can open DWG files will open yours, sorry. It appears to be lost forever. When received my client said that he couldn't open the file as it was corrupt. Upon questioning him he said that the drawing came up as "Drawing file is not valid". I then went to my machine and tried to open it and got the same message. Does anyone have any ideas on how I can recover the drawing.

As usual, the system error fairies waited until I hadn't backed up properly before attacking me with this problem. Go to Solution. Solved by pendean. I placed a copy of the drawing into a zip file using WinZIP This copy was corrupt so I went to the original file that I had created and that had been corrupted too. Hence I am having a problem with getting back to the file that is working.

It may be too late to suggest this for this instance, but it might be good practice to periodically purge any open drawings, and perhaps to use RECOVER to open drawing files. Okay so OP did you try inserting the problem drawing into a new drawing as a block?

Sounds like your file was corrupt to start with: Windows since XP maybe earlier has had a built-in ZIP tool, for free, worth using. Fid your BAK file, find your Autosave backup file, find yesterday's server backup file and restore.

Explore this as a better alternate when sending DWG files. I have tried to insert the drawing file into a new drawing but it comes up with a message saying that it was produced by an "incompatible version of AutoCAD LT". This isn't possible as I made the drawing initially, although as explained, there are other objects from external sources in it. It was, however, opening and closing fine until I zipped it up.

That isn't to say that the zipping had anything to do with it being corrupted. Skip to main content. Support and learning. To translate this article, select a language. View Original Translate. English Original X. View Original X. By: Support. Support 0 contributions.