The DWG file format is too new for Archicad 20 to be able to open it.
If upgrading to Archicad 22 is not an option then you can download DWG Trueview from Autodesk.
It is free and allows you to convert a DWG file to an older version that Archicad 20 can open.
Or have whoever sent you the file to save it in an older file format.
https://www.autodesk.com.au/products/dwg
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
