Although the preferred method for modelling in Etabs is by using the grid and
geometry wizard by Etabs for several reasons: 1. Error and warning free model,
2. Fast running,
3. Accuracy.

However, sometimes we see very complicated structures with round floor plans,
etc. so importing the model from AutoCAD would be easier. But, this will result
in hundreds of warnings and sometimes error when running the model in Etabs and
the model will likely take a long time to run.

There is a good practice where you can import the model from AutoCAD to Etabs
and avoid these issues, by editing the exported points from Etabs in Excel.
Go through the points that have a long precision xx.056524 “For example” and
reduce the number of digits and merge them as appropriate, then import the model
to Etabs and test.