Files with the .obi extension are most commonly associated with the Microsoft Outlook software application. Microsoft Outlook is a part of the Microsoft Office Suite of software applications. The OBI files contain the RSS subscription names and properties that are used to store RSS subscription feeds in a user's outlook profile. These files are stored in the XML file format.
Try a universal file viewer
File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the OBI file format or software that uses files with the OBI suffix, please do get in touch - we would love hearing from you.