Home Technology Computers Promethean Promethean: Open Whiteboard Files in Explain Everything Opening PWBs in the EE Whiteboard.pdf by KATHLEEN HADDAD Article Text: Select “Project Options” (3 Dots) Select “Open” Navigate to and select your Promethean Whiteboard file (.pwb) Your Promethean Whiteboard file will now open in the Explain Everything Whiteboard whiteboard explain everything