org.apache.poi.xssf.usermodel
Classes 
XSSFActiveXData
XSSFAnchor
XSSFCell
XSSFCellStyle
XSSFChildAnchor
XSSFClientAnchor
XSSFColor
XSSFComment
XSSFConnector
XSSFCreationHelper
XSSFDataFormat
XSSFDialogsheet
XSSFDrawing
XSSFEvaluationWorkbook
XSSFEvenFooter
XSSFEvenHeader
XSSFFactory
XSSFFirstFooter
XSSFFirstHeader
XSSFFont
XSSFFormulaEvaluator
XSSFHyperlink
XSSFName
XSSFOddFooter
XSSFOddHeader
XSSFPicture
XSSFPictureData
XSSFPrintSetup
XSSFRelation
XSSFRichTextString
XSSFRow
XSSFShape
XSSFShapeGroup
XSSFSheet
XSSFSimpleShape
XSSFTextBox
XSSFWorkbook