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When trying to open a drawing file in AutoCAD, the following message appears:

Drawing file is not valid.

Anyone else having this issue?

Indian Summer

Cult Leader
I can't say I've ever used AutoCAD. I have a suspicion the pool of people who are AutoCAD users AND also vegetarians/vegans AND at the same time into Internet forums is probably quite small, unfortunately ....

Is this a file you have created yourself? Does it have roughly the file size you would expect?

Often with other software when this kind of error message is displayed, the reason is that your version of the software is older than the version used to create the file. Other reasons include corrupted files or the file simply not being what you think it is.