# Package org.apache.poi.ss.util

- Class Summary
  Class | Description
  --- | ---
  AreaReference |
  CellAddress | This class is a container for POI usermodel row=0 column=0 cell references.
  CellRangeAddress | See OOO documentation: excelfileformat.pdf sec 2.5.14 - 'Cell Range Address'
  CellRangeAddressBase | See OOO documentation: excelfileformat.pdf sec 2.5.14 - 'Cell Range Address'
  CellRangeAddressList | Implementation of the cell range address lists,like is described in OpenOffice.org's Excel Documentation: excelfileformat.pdf sec 2.5.14 - 'Cell Range Address List' In BIFF8 there is a common way to store absolute cell range address lists in several records (not formulas).
  CellRangeUtil | Utility class that builds on `CellRangeAddress` Portions of this class may be moved to `CellRangeAddressBase`
  CellReference | Common conversion functions between Excel style A1, C27 style cell references, and POI usermodel style row=0, column=0 style references.
  CellUtil | Various utility functions that make working with a cells and rows easier.
  DateFormatConverter | Convert java DateFormat patterns into Excel custom number formats.
  DateFormatConverter.DateFormatTokenizer |
  ImageUtils |
  NumberComparer | Excel compares numbers using different rules to those of java, so `Double.compare(double, double)` won't do.
  NumberToTextConverter | Excel converts numbers to text with different rules to those of java, so `Double.toString(value) won't do.`
  PaneInformation | Holds information regarding a split plane or freeze plane for a sheet.
  PropertyTemplate | A `PropertyTemplate` is a template that can be applied to any sheet in a project.
  RegionUtil | Various utility functions that make working with a region of cells easier.
  SheetBuilder | Class `SheetBuilder` provides an easy way of building workbook sheets from 2D array of Objects.
  SheetUtil | Helper methods for when working with Usermodel sheets
  SSCellRange<K extends Cell> | For POI internal use only
  WorkbookUtil | Helper methods for when working with Usermodel Workbooks

- Enum Summary
  Enum | Description
  --- | ---
  CellRangeAddressBase.CellPosition | Indicates a cell or range is in the given relative position in a range.
  CellReference.NameType | Used to classify identifiers found in formulas as cell references or not.

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