MS Project Importer for Redmine
You need any environments that Redmine work on.
$ cd REDMINE_ROOT
$ ruby script/plugin install git://github.com/suer/redmine_ms_projects.git
save a MS Project format file(.msp) as an xml format(.xml) with MS Project
access your a redmine project, then click “MS Project” tab
select xml file, and click save button
select tasks that you want to import, then click save button