+x Rob Robinson - 6/8/2020 6:18:06 AMSince the Stardraw and DWG formats are both vector-based the results from exporting to DWG should be identical to the original data. I suspect that it's the View Resolution setting in AutoCAD that is at issue; for example, if View Resolution is set too low, circles might be rendered as a collection of straight lines. This does not mean that the object is not a circle, it's just that the rendering engine in AutoCAD is set to break curves into lines for display purposes only.Try using the VIEWRES command in ACAD to change the display resolution to a higher setting.If this does not solve the issue for you please email the original .S07 and exported .DWG files to techsupport@stardraw.com and we will be happy to investigate further.