| Name | Description | Type | Package | Framework |
| AreaReference | Class | org.apache.poi.ss.util | Apache POI | |
| CellAddress | This class is a container for POI usermodel row=0 column=0 cell references. | Class | org.apache.poi.ss.util | Apache POI |
| CellHandler | Represents callback for CellWalk traverse method. | Interface | org.apache.poi.ss.util.cellwalk | Apache POI |
| CellRangeAddress | See OOO documentation: excelfileformat. | Class | org.apache.poi.ss.util | Apache POI |
| CellRangeAddressBase | See OOO documentation: excelfileformat. | Class | org.apache.poi.ss.util | Apache POI |
| CellRangeAddressList | in OpenOffice. | Class | org.apache.poi.ss.util | Apache POI |
| CellReference | Common conversion functions between Excel style A1, C27 style cell references, and POI usermodel style row=0, column=0 | Class | org.apache.poi.ss.util | Apache POI |
| CellReference .NameType | Used to classify identifiers found in formulas as cell references or not. | Class | org.apache.poi.ss.util.CellReference | Apache POI |
| CellUtil | Various utility functions that make working with a cells and rows easier. | Class | org.apache.poi.ss.util | Apache POI |
| CellWalk | Traverse cell range. | Class | org.apache.poi.ss.util.cellwalk | Apache POI |
| CellWalkContext | Interface | org.apache.poi.ss.util.cellwalk | Apache POI | |
| DateFormatConverter | Convert java DateFormat patterns into Excel custom number formats. | Class | org.apache.poi.ss.util | Apache POI |
| DateFormatConverter .DateFormatTokenizer | Class | org.apache.poi.ss.util.DateFormatConverter | Apache POI | |
| ImageUtils | Class | org.apache.poi.ss.util | Apache POI | |
| NumberComparer | Excel compares numbers using different rules to those of java, so Double. | Class | org.apache.poi.ss.util | Apache POI |
| NumberToTextConverter | Excel converts numbers to text with different rules to those of java, so Double. | Class | org.apache.poi.ss.util | Apache POI |
| Region | Represents a from/to row/col square. | Class | org.apache.poi.ss.util | Apache POI |
| RegionUtil | Various utility functions that make working with a region of cells easier. | Class | org.apache.poi.ss.util | Apache POI |
| SheetBuilder | from 2D array of Objects. | Class | org.apache.poi.ss.util | Apache POI |
| SheetReferences | Holds a collection of Sheet names and their associatedAuthor:Andrew C. | Class | org.apache.poi.ss.util | Apache POI |
| SheetUtil | Class | org.apache.poi.ss.util | Apache POI | |
| SSCellRange | Class | org.apache.poi.ss.util | Apache POI | |
| WorkbookUtil | Class | org.apache.poi.ss.util | Apache POI | |