# Package org.apache.poi.xssf.usermodel.helpers

- Class Summary
  Class | Description
  --- | ---
  ColumnHelper | Helper class for dealing with the Column settings on a CTWorksheet (the data part of a sheet).
  HeaderFooterHelper |
  XSSFColumnShifter | Helper for shifting columns up or down
  XSSFFormulaUtils | Utility to update formulas and named ranges when a sheet name was changed
  XSSFIgnoredErrorHelper | XSSF-specific code for working with ignored errors
  XSSFPasswordHelper |
  XSSFRowShifter | Helper for shifting rows up or down
  XSSFSingleXmlCell | This class is a wrapper around the CTSingleXmlCell (Open Office XML Part 4: chapter 3.5.2.1)
  XSSFXmlColumnPr | This class is a wrapper around the CTXmlColumnPr (Open Office XML Part 4: chapter 3.5.1.7)

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