Download the rpm-file. Install app by the terminal command:

sudo rpm –i ./coil64-2.4.39.rhel6.x86_64.rpm

To remove app from your machine type in the terminal:

sudo rpm –e coil64-2.4.39.rhel6.x86_64.rpm

The app settings are stored in the file "~/.config/Coil64/Coil64.conf". You can keep it for the future installations or remove manually to completely clean the app from your system.

Also you can use the portable Linux version of the app: Coil64-linux-portable.