In RSSOwl 2.2 the option to import feeds from Google Reader was removed. If you are interested in migrating all your feeds from Google Reader over to RSSOwl, please install the previous RSSOwl 2.1.6 and run the import from there. After the import you can easily update to RSSOwl 2.2 (Help | Check for Updates) and continue the migration by selecting Tools | Unsubscribe from Google Reader.
In addition, you can now export a feed as CSV file (File | Save as...) and among some bugfixes, some new share providers where added (Google Plus, Pocket).
I would like to send out a big thank you for the donations that where submitted over the past weeks!
This bugfix release resolves an issue when synchronizing articles with attachments with Google Reader.