ABB Dox 10 file extension

I have received what they told me is the source code of an
ABB satcon 5.
Satcon 5 could be programmed in Dox 5 or in Dox 10.
I know the file format for Dox 5, and it certainly isn't Dox 5 format, but I don't know Dox 10.
The only file I have has the extension .S_M
Is this Dox 10 format?

Thanks

.S_M file is backup file of Dox10 and it should be restore for see the code and editing. IL can be converted into STL or LAD.I have Dox10/Dox5 program and manuals.if you need any help email me at
[email protected]