pentaho/pentaho-reporting — pull request #487 by tmorgner (2014-09-17 12:07:08+00:00)
Title: PRD-4988 - Ensured that XSSF colors are generated correctly with Alpha i...

...nformation so that Excel does not complain. Defaulted cell-format to default format "0" instead of undefined -1. Excel 2007 will still break if reports use number formats that are invalid for Excel.