| Name | Description | |
|---|---|---|
 | ActiveSheet | Returns an object that represents the active sheet (the sheet on top) in the active workbook or in the specified window or workbook. Returns null if no sheet is active (read-only). |
| AutoParse | Determines whether to automatically parse when setting a range value to a string value. |
| Culture | Gets or sets CultureInfo for the workbook. |
| DefaultTableStyle | Specifies the table style name from the ITableStyleCollection collection that is used as the default TableStyle (read/write). |
| EnableCalculation | Gets or sets whether the calculation engine is valid. |
| Names | Returns the INames collection that represents all the names in the specified workbook (including all worksheet-specific names). This is a read-only INames object. |
| PivotCaches | Returns the IPivotCaches collection that represents all the IPivotTable caches in the specified workbook (read-only). |
| ReferenceStyle | Gets or sets the reference style. |
| SlicerCaches | Gets the ISlicerCaches object associated with the workbook. |
| Styles | Returns the IStyleCollection collection that represents all the styles in the specified workbook (read-only). |
| TableStyles | Returns the ITableStyleCollection collection object for the current workbook that refers to the styles used in the current workbook (read-only). |
| Theme | Returns the theme applied to the current workbook (read-only). |
| Worksheets | Returns the IWorksheets collection that represents all the worksheets in the specified workbook. This is a read-only Sheets object. |