Paste your model files, etc. from the previous device to the new installation of ExtendSim.
Launch ExtendSim on the new device and activate it using the same Activation Key you used for the first installation. (If you can't deactivate ExtendSim on the previous device, you will get an error message stating your Activation Key is already in use on another device. In this case, contact Imagine That Inc.)
Note: If you're running ExtendSim on a Client device of an ExtendSim Floating license, the procedure is different. After, making copies of your ExtendSim models, any custom blocks, etc., please follow these instructions to Uninstall ExtendSim from a Client device.