Build 3.5.0.13 of xlsgen adds rendering of some conditional formatting types. Rendering is print preview, PDF, HTML, ...
Before this build, there was rendering support for regular cell conditions as well as formula conditions.
Beginning with this build, there is now also support for all other cell conditions (introduced in Excel 2007), meaning : text-based conditions, time-based conditions, duplicate/unique value conditions, average/stddev conditions and top/bottom conditions.