This recipe covers the following scenario: the migration of existing issues and projects from other project management systems to Redmine. There are many ways to import issues to Redmine. Plugins, third-party software products, third-party scripts, and direct database import. This recipe covers the scenario of installing and using the most recent fork of the http://www.redmine.org/plugins/importer plugin.
Search for a way to export issues from the software that you are currently using to the CSV or Excel file format.
The first steps are to perform a standard Redmine plugin installation following these steps: