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DWG AC1009 R11/12 supported?

I’ve tried to open a DWG with header AC1009 in versions 16.12.1 (production) and 18.3.0 (testing). I don’t expect it to work with 16.12.1, but I do expect it to work with 18.3.0 considering your site’s list of supported DWG formats, which includes R11/12. I can send the file privately if you need to see it.

Error: “The Dwg version is invalid…”

image.png (48.7 KB)


I have observed your comments. Can you please share source files with us so that we can further investigate to help you out. Also please share sample code and environment details with us.