Thought I would share an excel macro that I wrote not too long ago which allows you to completely translate an excel document. This macro came from the need to translate technical spreadsheets that were very complicated, and did not easily lend themselves to being translated cell by cell in something like babelfish or google translate.
This macro will scan the entire workbook, changing all titles, cells, and textboxes (shapes with text) into any language that google translate supports. It can translate a 50 worksheet workbook in < 5 minutes, and has been working great.
You can grab the excel macro here: http://taketoon.com/other/excel/translator (Examples, and instructions to be posted soon Now Posted)