FYI, preview is just an image/snapshot buried in the dwg, it is NOT
and NEVER is/was an indication of what's in the file or the state of
It means nothing at all the you can see the preview.
If the other suggestion fails, try to INSERT the file into one of
yours. You can also try a partial Open.
You can also try the free autodesk converter to try and change it's
version number and see if that helps.
Add-on products for LT
Is this from a newer version of AutoCAD saving in the 2007/2008 format?
wrote in message news:email@example.com...
hi.. i am trying to open a drawing, but it says that "drawing file is not
valid". However, I can see the drawing in the preview window. Any