This plugin allows you to export all searchable entities to a CSV.

How to

As an administrator go to the Admin section. Under Administer -> Utilities you can find the CSV Exporter menu item.

If a few easy steps you can select the CSV content.

1. Select what you wish to export (Users, Groups, Blogs etc.)
2. Once you've selected what you wish to export you get a choice of which columns to include
3. Now you can click on Preview to check if this is what you wish to export or you can click Download CSV to export all the content to a CSV file

Developers

You can add your own values to the available list by registering a plugin hook. Check out the GitHub repository on how to do that.