Excel API Library for .NET - Sample Browser | Document Solutions | Theme

## Theme Document Solutions for Excel provides you with a set of built-in themes so you can quickly change the overall appearance of a workbook. It also lets you create custom themes and apply them to workbooks. - Use the **Theme** property of a workbook instance to change the workbook's theme. - Use the **Add** method of a themes class instance to add a custom theme. - Use the built-in properties of the **Themes** class to get a built-in theme instance. - Use the **Themes** indexer to get a custom theme instance. // Save to an excel file workbook.Save("FolderExample.xlsx"); ' Create a new Workbook Dim workbook As New Workbook FIXME: This demo doesn't have VB code. ' save to an excel file workbook.Save("FolderExample.xlsx")