Windows has a folder length limit of 252 characters, but that comes with caveats....
If you are getting an error about not being able to access a file, review the file name and file paths. If you have a comma (,) in the path or file name, this impacts the software's capacity to read the data
Users reported that when ANZ Country kit is installed, opening a drawing/DXF file crashes with a fatal error in Civil 3D 2026.