The ".rarl" extension seems to be a misprint or confusion. Typically, files are compressed and archived with extensions like ".rar", ".zip", or ".7z". If "CDMA Workshop V3.4.1 Demo.rarl" is meant to imply a compressed archive:
Then the log window exploded with text:
The email arrived at 2:17 AM, timestamped from an ISP that had been defunct since the Clinton administration. No subject. One attachment: Cdma Workshop V3.4.1 Demo.rarl