Trying to Convert Image to 3D, having no luck

[Grifftech]

I am trying to convert this image, but when I go through the wizard it says the image is small ro something and should I convert to inches. I have tried it both ways but nothing shows up on the workspace, https://www.dropbox.com/sh/rr9m7jr7w74w ... yp6Oa?dl=0

[JoeJ]

Pretty sure you have to use a PNG or JPG file for it to work