ExcelWorkbookFormat Property

Gets or sets the Excel workbook format (Excel 97-2003 .xls or Excel 2007-2019 or above .xlsx). This property gives the output format when the workbook is saved and controls the features allowed when the workbook is updated by the library. When creating an empty workbook the format is Excel 97-2003. When the workbook is created from an existing excel file or stream, the format is the format of the opened excel document.

public ExcelWorkbookFormat Format { get; set; }

Public Property Format As ExcelWorkbookFormat
	Get
	Set