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Gets or sets whether a single HTML tab is exported when the workbook contains only one worksheet or when ExportSheetName specifies a worksheet to export.
The default value is false.
public bool ExportSingleTab { get; set; }
Public Property ExportSingleTab As Boolean
HtmlSaveOptions options = new HtmlSaveOptions();
options.ExportSingleTab = true;
bool exportSingleTab = options.ExportSingleTab;
using MemoryStream stream = new MemoryStream();
workbook.Save(stream, options);