How to restore corrupted dwg file?

I need to recover my autocad files. Every time I try to open a .dwg file it says "drawing file is not valid".

My HDD crashed and I restored my data using a recovery utility and since then my autocad files cannot open and giving the above messages.

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2 Answers

Try 'DWG Convert', It can convert Autocad files from one format to other. For ex. DWG to DXF.
May be it will work.

http://www.guthcad.com/dwgconvert.htm

 
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