https://forums.autodesk.com/t5/autocad-forum/how-to-fix-a-screwed-up-file-that-doesn-t-want-to-open/m-p/5825795#M311092 download and install that other CAD software called DRAFTSIGHT (the free version is good enough): it usually opens files AutoCAD has a hard time with (they you can SAVE or AUDIT or WBLOCK of anything else you want to to do with it and reopn in AutoCAD), but if it too cannot open it then your file is totally hosed. Mon, 21 Sep 2015 14:42:37 GMT pendean 2015-09-21T14:42:37Z