| Name | Description |
| AltStartupPath | Gets or sets the alternate startup path, which is referred to by some external formula references. |
| BackgroundCalculation | Gets or sets the property which specifies whether interruptible background calculation will be initiated as needed when the last lock on a workbook set is released. |
| CalculateBeforeSave | Gets or sets the property which specifies whether workbooks should be calculated as needed before saving. |
| Calculation | Gets or sets the property which determines whether this workbook set is automatically calculated as needed. |
| CalculationOnDemand | Gets or sets the property which determines whether individual cells are calculated on demand. This feature is turned off by default. |
| Culture | Gets the CultureInfo of this workbook set. |
| CustomLists | Gets or sets the custom lists used by IRange.AutoFill and IRange.DataSeries (null by default). |
| DefaultFontName | Gets or sets the font name to use in the default font when new workbooks are created. |
| DefaultFontSize | Gets or sets the font size in points to use in the default font when new workbooks are created. |
| Experimental | Provides the ability to enable experimental features for this workbook set. |
| HasLock | Returns true if the current thread has acquired a lock on this workbook set by calling GetLock or one of the other methods which acquire a lock on a workbook set. |
| IsTrial | Returns true if this is an evaluation or trial version of SpreadsheetGear, otherwise false is returned. |
| Iteration | Gets or sets the property which specifies whether iteration will be used when a workbook set is calculated. |
| LibraryPath | Gets or sets the library path which is referred to by some external formula references. |
| MaxChange | Gets or sets the maximum change allowed if iteration is to stop. |
| MaxColumns | Returns the maximum number of columns allowed in a worksheet. |
| MaxIterations | Gets or sets the maximum number of calculation iterations. |
| MaxRecursions | Gets or sets the maximum number of recursive calculations allowed when references to cells still needing calculation are detected during workbook set calculation. |
| MaxRows | Returns the maximum number of rows allowed in a worksheet. |
| MaxWorksheets | Returns the maximum number of worksheets allowed in a workbook. |
| NeverRecalc | Gets or sets the property which specifies that formulas in this workbook set should never be calculated. This property must be set before any workbook exists in the workbook set. |
| ReadObjects | Gets or sets the property which specifies whether charts, pictures and drawing objects should be read when reading a workbook. |
| ReadVBA | Gets or sets the property which specifies whether VBA Macros should be read when reading a workbook. |
| ReferenceStyle | Gets or sets the property which specifies whether to use A1 style or R1C1 style in cell and range references. |
| SheetsInNewWorkbook | Gets or sets the number of worksheets in a newly created workbook. |
| StartupPath | Gets or sets the startup path, which is referred to by some external formula references. |
| Workbooks | Returns an instance of IWorkbooks which represents all of the workbooks in this workbook set. |