.OBI File Extension
Outlook RSS Subscription File
3.9 | 30 Votes
What is an OBI file?
OBI files are named using the convention <profilename>.sharing.xml.obi. They are typically located in the following user directory:
OBI files can be exported to Outline Processor Markup Language (.OPML) files by selecting the following option in Outlook: File → Import and Export → Export all RSS feeds as OPML file.