OPML files allow users to import and export their rss feeds from one application to another. This is how to import your OPML file from another feed aggregator into IE7’s.
Ready to convert over to IE7. Here is how to import all your feeds into IE7’s feed reader.
Click the Star+ symbol in IE7’s toolbar.
Click the Import and Export option from the menu.
When the wizard opens, click Next.
Select Import Feeds and click the Next button
Select Import from File and browse to the OPML file.
Click Next and complete the import process.