| Name | Description | |
|---|---|---|
 | ActiveSheet | Gets the active sheet. |
| AllowDynamicArray | This api is obsolete, please use Formula2 to get or set dynamic array formula. |
| Author | Gets or sets the author. |
| AutoParse | Determines whether to parse automatically when setting range value to string value. |
| AutoRoundValue | Determines whether to round the number to 15 significant figures when getting the value. |
| BookView | Returns an object that represents the view settings of this workbook(read-only). |
| BuiltInDocumentProperties | Gets a collection that represents all the built-in document properties of the workbook. |
| Culture | [Init-only] Gets or sets culture for the workbook. The culture must contain both country/region and language. |
| CustomDocumentProperties | Gets a collection that represents all the custom document properties of the workbook. |
| CustomViews | Gets the custom views of the workbook. |
| DefaultTableStyle | Specifies the table style that is used as the default TableStyle. |
| DeferUpdateDirtyState | Gets or sets whether update the dirty state of the formula cells immediately when changing the value of a cell. |
| EnableCalculation | Specifies whether the calculation engine is working. |
 | FontsFolderPath | Gets or sets the location of font files that will be used when exporting pdf. |
| FullName | Returns the name of the workbook, including its path on disk. |
| GraphicsInfo | Provides graphics information. If this property doesn't have value, the workbook will use built-in graphic information. |
| IconSets | Filters data in a workbook based on a cell icon from the IconSets collection. This property is read-only. |
| LoggerFactory | Gets or sets the logger factory shared by all workbooks. |
| Name | Get or set a string value that represents the name of the workbook. |
| Names | Returns the INames collection that represents the workbook-specified names. The Names object is read-only. |
| Options | Returns the IExcelOptions object that represents some settings to control workbook behavior. |
| Path | Gets or sets a string that represents the path to the workbook file that this workbook object represents. |
| PivotCaches | Gets a PivotCaches collection that represents all the PivotTable caches in the specified workbook. |
| ProtectStructure | True if the order of the sheets in the workbook is protected. Read-only Boolean. |
| ProtectWindows | True if the windows of the workbook are protected. Read-only Boolean. |
| ReferenceStyle | Gets or sets the reference style. |
| ResetAdjacentRangeBorder | Determines whether to reset adjacent range's border when setting border for a range. The default value of this property is true. |
| SelectedSheets | Returns a IWorksheets collection that represents all the selected sheets in the specified workbook. |
| ShowPivotTableFieldList | Gets or sets a value indicating whether the PivotTable field list can be shown. Default is true. |
| Signatures | Gets a collection of Signature objects that correspond to the digital signature attached to a document. |
| SlicerCaches | Gets the ISlicerCaches object associated with the workbook. |
| Styles | Provides access to the collection of cell styles in the current workbook. |
| TableStyles | Gets the table styles used in the current workbook. |
| TagJsonSerializer | Gets or sets the json serializer/deserializer for custom type. |
| Theme | Returns an instance of ITheme which provides access to the theme associated with a workbook. |
| ValueJsonSerializer | Gets or sets the json serializer/deserializer for custom cell values |
| WebRequestHandler | Gets or sets the singleton instance of the IWebRequestHandler implementation that will be used to handle web requests. This property provides a centralized way to access and set the web request handler for the application. |
| Worksheets | Gets a collection of worksheets contained in the workbook. |
| WriteProtection | Returns a WriteProtection object that provides access to the workbook write protection options. |