In Spread.Services, you can create a new instance of a workbook by using the constructor of Workbook class.

A workbook may contain one or more worksheets that are kept in the Worksheets collection. By default, a workbook contains one empty worksheet with the default name Sheet1, which is created as soon as the user generates a new instance of the Workbook class.

Refer to the following example code to see how you can create a workbook using Spread.Services.

//Initialize the WorkBook 
Workbook workbook = new Workbook();

In order to add more worksheets to your workbook, refer to Work with Worksheets in this documentation.