This is a plug-in to add a BOM at the beginning of the CSV output from the Redmine. You will be able to output a UTF-8 CSV that can be read in Excel by using this.
This plugin was originally developed by tmtm (http://github.com/tmtm/).
% script/plugin install git://github.com/Rumega/redmine_csv_with_bom
The original version doesn't work with Redmine 2.2.0 (and may be older versions) Updated version works.
Added Redmine 2.6 support. Rewrited the patch in a more correct way.