For all conversions there should be backup files and window to ask if existing backup should be overwritten.
The loading of a kml file in the main window should not generate a muxp file that could overwrite an existing one
--> Create a temporary muxp file that is deleted again when loaded
For all conversions there should be backup files and window to ask if existing backup should be overwritten. The loading of a kml file in the main window should not generate a muxp file that could overwrite an existing one --> Create a temporary muxp file that is deleted again when loaded