If you’re like most people, you probably use Photoshop to create graphics and illustrations. But if you want to export a STL file from Photoshop, there are a few things you need to know. First, the STL file must be in a format that Photoshop can understand. This is usually .stl or .tga. Second, the file must be in an openable format. This is usually .jpg or .png. Finally, the file must have been created with a software program such as Inkscape or GIMP.