Notes about the PLATO file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The PLATO file type is primarily associated with 'PLATO Web Learning Network (PWLN)' by PLATO Learning, Inc.. This file type is created in the Temporary Internet Files folder for the local account when iPCD3 courseware is run. You log in at plato.distancelearn.org.