.RGE File Extension
File TypeEntourage File Archive
What is an RGE file?
Archive of items from an Entourage database; may include mail messages, tasks, contacts, notes, calendar events, and project files; created using the Export command from the Entourage File menu; may be imported using the Import command.
NOTE: Microsoft Entourage was replaced by Outlook in the Office for Mac 2011 release. Outlook 2011 can open and import RGE files.