Creates a new workbook containing 1 worksheet, in the specified file format. The sheet is blank when the workbook is created, and standard font, style, and format settings applied.

public virtual Workbook Create(FileFormat format)
Public Overridable Function Create(ByVal format As FileFormat) As Workbook

The file format to use for the workbook.

A Workbook object representing the created workbook.

For more information about the differences between the file formats, see ExcelApplication.FileFormat

Workbook wb = xla.Create(ExcelApplication.FileFormat.Xlsx);
Dim wb As Workbook = xla.Create(ExcelApplication.FileFormat.Xlsx)