| Name | Description | Type | Package | Framework |
| CalculationChain | The cells in a workbook can be calculated in different orders depending on various optimizations and dependencies. | Class | org.apache.poi.xssf.model | Apache POI |
| CommentsTable | Class | org.apache.poi.xssf.model | Apache POI | |
| ExternalLinksTable | Holds details of links to parts of other workbooks (eg named ranges), along with the most recently seen values for what they point to. | Class | org.apache.poi.xssf.model | Apache POI |
| IndexedUDFFinder | IndexedUDFFinder was moved to the org. | Class | org.apache.poi.xssf.model | Apache POI |
| MapInfo | This class implements the Custom XML Mapping Part (Open Office XML Part 1: An instance of this part type contains a schema for an XML file, and | Class | org.apache.poi.xssf.model | Apache POI |
| ParagraphPropertyFetcher | Class | org.apache.poi.xssf.model | Apache POI | |
| SharedStringsTable | Table of strings shared across all sheets in a workbook. | Class | org.apache.poi.xssf.model | Apache POI |
| SingleXmlCells | This class implements the Single Cell Tables Part (Open Office XML Part 4:Author:Roberto Manicardi | Class | org.apache.poi.xssf.model | Apache POI |
| StylesTable | Table of styles shared across all sheets in a workbook. | Class | org.apache.poi.xssf.model | Apache POI |
| ThemesTable | Class that represents theme of XLSX document. | Class | org.apache.poi.xssf.model | Apache POI |
| ThemesTable .ThemeElement | Class | org.apache.poi.xssf.model.ThemesTable | Apache POI | |