Hi,
first run command _SAVEAS, give it a new name and make sure the file-format is set to DWG-2013.
If that fails run command _WBLOCK with option "entire drawing" and create a new DWG from your existing one (dwg format 2013!). ==> by default that will work.
Copy your existing BAK file from the current open drawing to a save position
Copy your existing DWG file from the current open drawing to a save position
Now exit Civil 3D ==> it will ask you to save the file, answer with yes, that will work in most cases. If not you do have the wblocked drawing or the one from the previous save which you copied to a save location.
Good luck, - alfred -
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Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ...
blog.ish-solutions.at ...
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CDay 2025------------------------------------------------------------------------------------
(not an Autodesk consultant)