EC 135 V5 in VIP Version
The VIP version has a classy cabin interior with chic leather seats.
Unzip the archive using 7-Zip (Windows), The Unarchiver (MacOS X) or XArchiver (Linux) into a suitable subdirectory of the Aircraft directory of your X-Plane installation.
Note the instructions for setting up the controls in the manual.
X-Plane 11.50 or newer under Linux, MacOS or Windows.