Unfortunately, the RSO Distance Tool is not compatible with Mac OS X or Windows 10.
Route per State Overflown (RSO) distance tool - Frequently Asked Questions (FAQ)
Unfortunately, we can’t provide the unit rates of future months. The best estimate would be to use the last month available on the EUROCONTROL website.
You normally do not need a login and password to use the tool. This is a common problem with the RSO Distance Tool. Fortunately, it can be resolved by right clicking on the icon of the application and selecting ‘run as administrator’. If everything goes well, the application should open without any problems.
In that case, you go to the link below and download the unit rates in a txt format for the month of the flight.