One of the security features of the system is that file(.epm) that you
download is locked to the machine/device where it was originally
downloaded. This means that you will not be able to open .epm files
downloaded from a different computer. You have to download the file
again to able to open it. To transfer downloaded file(.epm), the first
thing to do is to export it first. You can export the file to formats
like mp3, .aac, or wav. Once it is exported to any of these formats, you
can now transfer and open it using a different machine/device.