Photoshop, Blender, Meshmixer, S3D to add the frame.
Dimensions: 165mm x 115mm x 3.7mm (6.5mm with frame).
Thingiverse does not allow zip or rar file uploads, and as this is a 460MB stl I've had to compress it and add a ".cdr" extension to get around the limitations.
Download the file, remove the ".cdr" extension and you'll have a zip file to uncompress.
Note: This is a large and detailed stl file and may put some systems/slicers under pressure. It slices best in Cura 3.6+ or S3D.