Could someone please convert this file to 3DM?

 From:  twofoot
8002.1 
Hi folks. Somehow, I've lost my original Moi file for this piece. I only have the STL I made for 3D printing. Could someone please convert this so I can open it with Moi for updating?

Thanks!

Chris

EDITED: 20 Feb 2022 by TWOFOOT