My English is not good. Sorry if this have any mistakes. The method in poi to add column label is addColumnLabel(DataConsolidateFunction function, int columnIndex) addColumnLabel(DataConsolidateFunction function, int columnIndex, java.lang.String valueFieldName) Is it possible to Insert data into Column Label filed without use a data consolidation function by use addColumnLabel method. thanks.
Bugzilla is probably not the best place for questions, please take a look at the mailing-list, many more people are subscribed to those and you run a better changce of getting a response to questions there. See http://poi.apache.org/mailinglists.html for details. As to the question, it seems the XML format specification requires this field as the component CTDataField requires a STDataConsolidateFunction.Enum to set the subtotal attribute.