Unfortunately the file is corrupted and doesn't open.
(Windows 3D Viewer, Prusa Slicer 2.6)
It thought due to the filename being "DAS Adapter Quest 3.gcode.3mf" it maybe isn't a 3mf file but a GCODE file.
However, after removing the ".3mf" file type ending and trying it to open as ".gcode" file PrusaSlicer still gives an error.