Hello,

Thank you for your advises.

last night, we fount another file that cannot open from autocad.

This time, export drawing does not work either.

The only way make this work is open corrupted file at draftsight, select all and copy / paste to new blank dwg file.

Can anyone take a look "cannot open (2).dwg" & "cannot open.dwg" and let us know why this happen and how to prevent this?

Otherwise, manual repairing at each time is simply not working.

Thank you again.

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Hello,

I am using draftsight and my consultant says they cannot open this file.

the file is still ok in draftsight. but just not working in autocad 2013.

Can you check and let me know how to fix this?

I cannot work with draftsight if it is not working with autocad.

Thank you.