Okay here it goes:

Open poser and bring in the conforming footwear of your choice.

Select the shoe and then export it as a wavefront OBJ

The following dialog box will open use the boxes that are check marked and click ok

After this another box will open asking you what you want exported from the scene

After you have selected the parts you want exported click ok and another
box will open

I would leave the boxes you see checked, click ok, name and save the .obj to where ever you keep .obj files.

My Facebook Page