.SLDXML format : SOLIDWORKS 3DEXPERIENCE Smartlink add-in

Hello SW desktop users,

I tried importing the .sldxml file into SOLIDWORKS 2020, but I can only see 

- 3D model geometry
- Assembly structure (similar to step, iges file format.)

How can I get an add-in: "SOLIDWORKS 3DEXPERIENCE Smartlink add-in"? I don't see it over here in this picture.

Please help me with this situation. Thanking you in advance. @TS @JG