Issue:
You would like to know what the DWG file format version codes are for AutoCAD.
Solution:
To view the codes of a particular DWG file, open it within Notepad or other text editor program. The first text in the file is the code.
MC0.0 - DWG Release 1.1
AC1.2 - DWG Release 1.2
AC1.4 - DWG Release 1.4
AC1.50 - DWG Release 2.0
AC2.10 - DWG Release 2.10
AC1002 - DWG Release 2.5
AC1003 - DWG Release 2.6
AC1004 - DWG Release 9
AC1006 - DWG Release 10
AC1009 - DWG Release 11/12 (LT R1/R2)
AC1012 - DWG Release 13 (LT95)
AC1014 - DWG Release 14, 14.01 (LT97/LT98)
AC1015 - DWG AutoCAD 2000/2000i/2002
AC1018 - DWG AutoCAD 2004/2005/2006
AC1021 - DWG AutoCAD 2007/2008/2009
AC1024 - DWG AutoCAD 2010/2011/2012
AC1027 - DWG AutoCAD 2013/2014/2015/2016/2017
AC1032 - DWG AutoCAD 2018
Related Software:
VeryPDF AutoCAD to PDF Converter GUI,
https://www.verypdf.com/app/autocad-to-pdf-converter/try-and-buy.html
DWG to Vector Converter Command Line,
http://www.verydoc.com/dwg-to-vector.html