Sorry if i post in a wrong forum branch.
Where can i find a specification of the DWG format ?
You mean the different (and now, nearly annually changed) file versions? Wikipedia has a listing of them under DWG, IIRC.
There is a organization now called ODA(opendwg.org) that is working on an open source version of the DWG format (which I'm sure Adesk is thrilled about).
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