This is really helpful John. Thank you for the details and the screenshots. I emailed our surveyor what you mentioned above and he sent me these two files attached below.
He re-saved the file for a different version of CAD.
The TXT file shows point information (Point,Easting,Northing,Elevation,Description).
When I import this and label 0 as perimeter and points(4-13-24) as elevation data. I get the following screenshot.
The polylines around the perimeter are gone and same with the elevation contour lines. I can see them when i display the other layers in 0. I guess this means he still failed to explode all block objects. He merely saved it as an older CAD version?
When you open up this file did he do what you mentioned above and unblock everything like I requested? Or did he just save the exact same file for a different version of cad and do nothing with the layers?
23-84 savedown.dwg23-84.txt