What is .OR4 file extension?
.OR4 file extension is a known file type. This section tells you everything you need to know about this extension.
Organizer file created with Lotus Organizer, a personal information manager (PIM) software program; includes a contact list, calendar, to-do list, call record, and other information.
Lotus Organizer 97 GS was included as part of IBM Lotus SmartSuite 97 GS.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.