Hi,
YES, you can open files in AutoCAD 2020 which were created with AutoCAD 2015.
- alfred -
Hello @Anonymous,
Yes, AutoCAD 2020 is backwards compatible able to open up previous versions take a look at @Alfred.NESWADBA post here.
Thank you for posting.
Natasha
Community Product Support Specialist
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yes in Autocad, but not in Revit.