=> 'Known files (*.stl, *.obj, *.amf)|*.stl;*.STL;*.obj;*.OBJ;*.amf;*.AMF;*.xml;*.XML', When dialog pops up, it can see ALL known file types instead of only stl.
=> 'Known files (*.stl, *.obj, *.amf)|*.stl;*.STL;*.obj;*.OBJ;*.amf;*.AMF;*.xml;*.XML', When dialog pops up, it can see ALL known file types instead of only stl.