/**
* Accessor for the CompoundFile. For this feature to return non-null
* value, the propertySets feature in WorkbookSettings must be enabled
* and the workbook must contain additional property sets. This
* method is used during the workbook copy
*
* @return the base compound file if it contains additional data items
* and property sets are enabled
*/
public CompoundFile getCompoundFile()
{
return(excelFile.getCompoundFile());
}
