| 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  CellRangeAddressPortions of this class may be moved toCellRangeAddressBase | 
| 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 | |
| DateParser | Parser for java dates. | 
| 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  SheetBuilderprovides 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 | 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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