I'm trying to open an ECW file in Arcmap 10.5 but I can't seem to find a way to do so. I tried to download a plug in but since I'm not the administrator of the computer I need a password that I don't have and the person that has it won't be back anytime soon.
So what are my options to be able to open these ECW files with arcgis 10.5 without having to download or install something new ? (I can try to download and install something if you have an idea but I doubt it will work).