SPOC currently accepts the following major file versions of MicroStation (DGN) and AutoCAD (DWG) files:
- DGN V7
- DGN V8
- DWG 2000
- DWG 2004
- DWG 2007
- DWG 2010
- DWG 2013
- DWG 2018
Note that the following AutoCAD software versions typically generate the major file versions accepted by SPOC:
| Version | Software Versions |
|---|---|
| DWG 2000 | AutoCAD 2000, AutoCAD 2000i, AutoCAD 2002 |
| DWG 2004 | AutoCAD 2004, AutoCAD 2005, AutoCAD 2006 |
| DWG 2007 | AutoCAD 2007, AutoCAD 2008, AutoCAD 2009 |
| DWG 2010 | AutoCAD 2010, AutoCAD 2011, AutoCAD 2012 |
| DWG 2013 | AutoCAD 2013, AutoCAD 2014, AutoCAD 2015, AutoCAD 2016, AutoCAD 2017 |
| DWG 2018 | AutoCAD 2018, AutoCAD 2019, AutoCAD 2020, AutoCAD 2021 |